Arcteryx Alpha FL 45 Backpack

Arcteryx Alpha FL 45 Backpack

Arcteryx Alpha FL 45 Backpack is rated 4.7 out of 5 by 9.
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4.7 Star Rating

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Product Description Item No.   10300055

The Arc'teryx Alpha FL 45 Backpack is a streamlined alpine mountaineering pack designed for fast and light ascents. Simplicity of design meets rugged and high-performance materials to create a durable and highly weather-resistant climbing pack. Both the inside and outside are urethane coated, offering exceptional abrasion-resistance from rocks and sharp ice climbing gear. The glove friendly one-handed cordlock closure makes it quick and easy to open and close the pack, ensuring won't have to waste any precious time. Keep your tools or even an extra layer stashed in the external bungee system, and use the low-profile, harness compatible waistbelt to help stabilize your load if it gets a bit heavy. This ultralight pack is focused on minimalist alpine mountaineering, but you'll find it useful for a wide range of climbing applications. Stash a snack or anything you may need handy in the external WaterTight™ pocket, and keep it moving.

FEATURES of the Arcteryx Alpha FL 45 Backpack

  • Ultra light design and construction allow climbers full functionality
  • Highly weather resistant AC2 (Advanced Composite Construction) fabric and sealed seams on the main compartment provide the ultimate protection from rain and snow
  • Glove friendly main opening with a pull to open, pull to close drawcord system
  • RollTop extension collar seals the pack for complete waterproof main compartment
  • 4 integrated side lash points, now accommodating straps up to 22mm wide and 6 on the front for lashing extra gear to the pack's exterior such as sleeping pads or skis
  • External bungee compression system can carry crampons, up to 4 ice tools or a bulky belay parka
  • Shoulder strap and sternum strap have been revised for a better fit
  • Top rope strap buckle is now anchored on the back panel for easier use
  • Small external WaterTight zippered pocket with key clip
  • Rigid, formed backpanel provides support and structure while remaining comfortable against the back
  • Reflective white interior makes it easier to see items inside the pack
  • Fully seam-sealed for water resistance
  • Dual haul loops / carry handles permit hauling or clipping off at a snow anchor
  • Adjustable, removable sternum strap
  • Extendable collar with drawcord for additional capacity
  • Large, webbing pull-tabs for quick and easy, glove-friendly access
  • Includes bungee front attachment system for carrying crampons or additional items

- + Product Specifications
Gender: Mens
Features: Hip Belt, Ultralight, Waterproof, Carry-On Size, Compression Straps
Weight: 24 oz
Fabric Details: 46 % Nylon, 46 % Polyester, 8 % Elastane
Pack Fabric: Nylon
Pack Pockets (+ main compartment): 2
Waterproof: Yes
Ultralight: Yes
Arcteryx Collection: Ascent
Disclaimer: We only ship this brand to US Addresses.
Best Use: Skiing, Climbing, Backpacking, Mountaineering and Alpine, Ice and Mixed Climbing
Pack Capacity: 32 Liters / 1953 Cubic inches
Trip Length: Expedition
Frame Type: Frameless
Pack Access: Top
Rated 5 out of 5 by from Minimal and Versatile I've been looking for the perfect midsize pack for over a year now and I finally went all in on the Alpha 45 FL despite the premium price... and here's why. I already own a really big pack (65L) + a really small pack (16L) wanted a mid-size (35-45L) pack that could be incredibly versatile and fill any gaps between the other two. (For reference, my lightweight pack is a BD Bullet 16L that I love for mountain biking + lead climbing, and then I've got a 65L Osprey Atmos for thru-hikes and big multi-day trips). By versatile, I mean a pack that could handle everything from alpine climbing to regular airport travel (because wheeled luggage sucks, and unfortunately I don't live close to any great climbing). Obviously there are a lot of great travel packs, but I wouldn't want to use them as a daypack and certainly wouldn't want to use them on an alpine outing. I finally realized that I could either have a travel bag that wouldn't work as a climbing pack, or a lightweight climbing pack that would require thoughtful planning. And clearly this bag is minimal - if you love compartments and zippers, this is not the bag for you. But here was my moment of clarity - I was staring at two separate bags in my cart (one travel bag plus another cheaper, heavier, less durable climbing pack) and figured that I'd try out the Alpha FL 45L (since nothing is worse than having a cumbersome climbing pack) and then buy another travel bag if I needed one. But after multiple trips, I've not felt any desire to own a second mid-size pack. With some careful packing this thing fits all of my gear and then is ready to unload + re-pack once I arrive at my destination. It's small and light enough to use as a daypack, but rugged and big enough to use as an alpine pack. I'd rather have a half-full 35L than a super-stuffed 20L pack any day, and as I get older I'm moving more towards the philosophy of "fewer choices are better - spend more on nicer, more versatile gear". This pack totally epitomizes that ideal. My only complaint is that I wish the foam pad in the back was removable - it would be great to be able to take it out to use as a camp pad.
Date published: 2017-12-21
Rated 5 out of 5 by from The best I love this pack and everything about it. I have used this pack for both technical purposes (i.e., climbing and hiking) as well as just basic commuter/daily purposes and I find it works great for both. However, it clearly is designed, and excels the most, in the alpine environment. Pros: (1) The pack is amazingly lightweight for its size (there is a caveat to the size I will mention later). (2) It is incredibly durable and water proof. I personally have yet to tear a hole into this pack or managed to have any water permeate it whatsoever. (3) Simplistic design with just enough support in its frame and straps (4) The design allows it to hold tightly to your body, which is incredibly important in a pack while climbing. (5) Easy to manipulate (i.e., open the main and external compartments, put on/take off, adjust straps, unclip waistbelt) in the freezing cold while wearing multiple layers of gloves. Although I haven’t tried, you could probably do everything you need to even with mittens on. (6) Ice axe/tool attachments are easier to use than traditional attachments (7) Crampon straps work great. I thought my crampons would have cut these by now, but I have yet to have any issues. Also, you can use the straps for other things you need to attach on the outside (e.g., helmet, belay jacket) (8) I actually find the key hook in the external pocket quite useful most of the time. That said, I am not carrying my house keys on me for big alpine objectives and haven’t found a use for it then. (9) The external attachment points on the Alpha FL 45 (do not exist on the 30L model) are very useful, particularly for attaching boots for approaches. Cons: (1) Expensive, but it find it is worth it (2) The size is a bit deceiving, as the size in the name of the product is actually the size with the roll top fully expanded.
Date published: 2017-11-02
Rated 5 out of 5 by from Great Alpine Pack This is a fantastic alpine pack. Its slender shape carries well on steep and technical terrain. I was originally worried about the unpadded hip belt but, after several months of use, the lack of padding is not an issue. The unpadded hip belt actually allows for a more comfortable system when using a harness with ice clippers attached. The durable material and taped seams make this a well performing pack in rough and wet environments.
Date published: 2015-10-18
Rated 4 out of 5 by from Very nice pack This pack is fantastic. It is light, it carries well, and it climbs well. It is simple, streamlined, and almost perfect. Now that that's out of the way, here are two nitpicks: The sternum strap is both too short and it would be nice if it had a bit of elastic so that it could expand when I'm breathing hard. Some of us have either breasts or muscles in our chest, and the strap is almost too short for me to use. It's downright uncomfortable when I'm breathing hard. The shock cord is not very durable at all. Ice tool blades and crampons destroyed mine fairly quickly. It works great. It just didn't last. Regardless, the pack is still close to perfect. I have both the 30 and the 45, and I'm tempted to get another 30 for my wife as a crag pack.
Date published: 2015-09-03
Rated 3 out of 5 by from Disappointing I am an avid fan of Arc'teryx products being the proud owner of many. I purchased my FL45 in Chamonix for a mountaineering course last July. It worked well but we had good weather. Then I returned home to the Lower Mainland where it rains the pack started to disappoint. I am going into K2 on a trek this July and I was thinking this would be my pack for the approach and exit walk. Three times I have been out and got caught on a good, moderate West Coast rain event. My gear and clothes were soaked plus I had an inch of water in the bottom. The problem seems to the main bag is waterproof, but the extension collar and closure fabric are at best lightly water resistant. My solution has been to buy a pack cover. The second issue is the size. This is not a 45 litre pack. It is a 30 litre pack with a 15 litre extension. The distinction may splitting hairs for some, but with your Altra and other lines the added volume provided by the extension collar is stated. Just not like Arc'teryx. I was not concerned that the pack has less hip belt padding than light backpacking packs. Pack it right and the pack is comfortable, at least for me. It does have to be more thoughtfully packed if you are going to use it for trekking Paul. I have put several consecutive days of 6-8+ hours with about 25 lbs. it was fine - for me.
Date published: 2015-04-14
Rated 5 out of 5 by from Great product, for what it is intended! This is a great pack for what it is intended to do.. fast light alpine, but do not let that deter you to buy one for whatever else reason. i got mine in chayenne, love the color, was really bright though at first, but faded a little to a softer red/orange-ish color. Pesonally i've used my pack mostly for cragging and some multipitching trad climbs, and i can fill it up with some soft gear, water a full set of BD Cams, and nut set, harness, and cram down a 9.6 60m rope... this thing swallows ALOT, but yet remains within it boundaries. now we already know that this thing works great for fast & light alpine pushes.. so i wont rant about it, it was what it was built for needless to say, arc'teryx hit the nail on that one. so can it perform out of that box? i'd dare to say yes, but i wont say that it will properly excel at for example long hikes, since it does not have a rigid frame, more or less a foam pad to protect the back, and it does not have any kind of ventilation for the back. so there are some shortcomings to it. one thing id like to see arc'teryx do is the roll closure, to have some stiffer lips, so that you can roll it up to have it open when you don't need the rolltop. but for multipitch sessions, id buy one more! for alpine id buy 2 more, and one for my dog!
Date published: 2015-04-07
Rated 5 out of 5 by from Light and strong. I’ve found this to be a very well designed and robust bit of kit. Its dead light - it weighs a kilogram less than my old 45 litre rucksack which it’s replaced and it holds just as much as that one did! It’s basically a cylinder of nylon canvas. The regular shape, as much as the white interior, means that I have had no trouble finding and retrieving stuff. It’d probably be waterproof if I didn’t keep opening it and shoving my wet gloved hands inside. The shoulder straps and back padding are certainly minimalist but work well. I’ve bivvied overnight in the Cairngorms and Lochaber this summer with this sack and found it to be more comfortable to carry than sacks with elaborate - and heavy - suspension and back systems. I’m used to rucksacks without a lid and I like the dry bag type opening on this one. If you enjoy painstakingly adjusting straps in bad weather then this ‘sack probably isn’t for you. Its seems to have been designed ‘from the ground up’ and for that reason perhaps doesn’t have some of the features that you might expect – but I reckon it has all the features that you’ll need.
Date published: 2014-11-30
Rated 5 out of 5 by from Just completed an 800 km backpack thru Spain incl. the Pyrenees My wife and I just completed the Camino de Santiago via. the Camino Frances route from St. Jean Pied-de-Port France to Santiago de Compestelo Spain including crossing the Pyrenees twice. This is an 800 km backpack through the Pyrenees and across the Meseta (high plains). There are albergues (hostels) and restaurants available. I used the Alpha FL 45 for all 34 days. My pack weighed ~25 lbs including food and water for the day as well as everything that we needed for 6 weeks, but no tent or cooking gear since we stayed in albergues and ate in restaurants/bars. I have nothing but good comments about the pack. The minimalist waste belt wasn't an issue and I found myself walking with it undone much of the time, especially on the steep descents. Water and anything wet was carried outside of the rolltop but inside the extendable collar - I was just able to carry everything with the collar snuggly closed. I also had a bag with 2 Thermarest lightweight air mattresses tucked under the bungee front attachment. I ended up with an extra pair of boots (when the initial pair failed) and I put them on top held down by the top compression strap. I also added 4 straps under the side lash points so that I can carry skis this winter when backcountry skiing. Whenever I took a sweater or rain jacket off they went there. The pack hugged my shoulders and back and it never waivered. I did have to repack from scratch everyday since there aren't any compartments. I would have been handy to have some pockets for snacks, camera, etc., but this is designed to be absolutely simple. My back sweated a lot with the waterproof material tight against it. I teach whitewater canoeing and telemark skiing and spend a lot of time outdoors and plan to use this pack in other activities. I was pleasantly surprised that this pack carried so well, was very comfortable, rain tight and fit all my needs.
Date published: 2014-09-28
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- + Size Guide

Hipbelt Sizing
SIZE Small Medium Large
Men's 27 - 32" 32 - 37" 37 - 42"
Women's 25 - 30" 27 - 32" 30 - 35"

How to Find Your Foot Measurements

Arc'teryx packs are sized either in 3-length options: Short (S), Regular (R) and Tall (T), or in 2-length options: Short/Regular (SR), and Regular/Tall (RT).

Sizing refers to YOUR OWN BACK LENGTH

Measure your Back:

• Measure along the spine between the 7th cervical vertebra and the level of the hip iliac crest
• Compare this measurement to the Sizing Charts
• It is possible to interchange different size shoulder strap and hipbelt components on many Arc'teryx Packs, but this will not change or affect the back-length of the pack.

- + Warranty Info

Arc'teryx Warranty and Repair

Arc'teryx guarantees the quality and performance of all of their products. Items with defects in materials or workmanship will be replaced or repaired at the discretion of Arc'teryx for the practical lifetime of the product. Items that are damaged through wear and tear, misuse, or neglect may be repaired at a small charge.

How do I send back an item for Warranty, or get an item repaired by Arc'teryx?
For Customers in North America and Europe, Arc'teryx recommends that the product be returned to the store or site where it was originally purchased.

If this is not possible, fill out their online warranty form which can be found HERE. They will email you with full instructions on how to send your product to their Warranty and Repair Center. Do not send your item to them without first obtaining an RA number from Arc'teryx.

Arc'teryx is not responsible for items that are lost or damaged during shipping and cannot replace parcels that are lost during return shipment if proof of tracking is not available. Please use a guaranteed delivery service that provides tracking information, insurance, and proof of delivery when sending an item back to Arc'teryx.

For customs purposes, Arc'teryx requires you to provide them with a PHYSICAL address, however, your warranty/repair item can still be shipped to a PO Box.

How do I contact them with questions?
Complete their Warranty or Repair Request Form. If you have any questions or concerns, you can reach their Customer Service department at 1-866-458-2473.

What is and isn't covered under the Warranty Policy?
Defects in materials or workmanship are covered for the practical lifetime of the product. Material refers to zippers, buckles and fabrics. Workmanship refers to seams, seam tape and construction. Damage due to wear and tears such as rips, tears, abrasion or UV degradation, misuse or neglect is not covered under Arc'teryx's warranty policy but may be repairable for a fee.

What is covered under the Warranty Policy on Arc'teryx footwear?
Defects in material and workmanship will be covered by Arc'teryx for the practical lifetime of the product. The practical lifetime for footwear can vary drastically depending on the frequency and type of usage. Things such as the wearing of the outsole, frayed laces, nicks and tears can indicate that a shoe has surpassed its practical lifetime. These are examples of wear and tear or damage which are not covered by Arc'teryx. If you believe there is a defect in material or workmanship present on your product, please see follow the instructions on how to send it to Arc'teryx for assessment.

What does 'practical Lifetime of the product' mean?
Although Arc'teryx builds their products to last over extended periods of time, nothing lasts indefinitely. Materials will deteriorate and fade over time and moving parts will wear out. Arc'teryx will cover your product under their warranty policy until such a time that they have deemed the product to be worn out beyond reasonable repair. If the product is showing the signs of its age-for instance, the material has become thin or faded, there are rips and tears, the zippers no longer catch, the cuffs are fraying, or the soles are worn-they will take this into consideration when assessing your product for a warranty request. All gear will suffer from differing degrees of wear-and-tear, depending upon the user. Equipment used by an outdoor guide for 150 days a year will by comparison, degrade faster than gear used by a weekend skier. By taking care of your equipment you will ensure a longer lifetime for your gear. Arc'teryx recommends that you visit their Product Care page for more information on how to wash and care for your equipment.

Will Arc'teryx repair or replace my product?
If your Arc'teryx product fails due to a manufacturing defect, where possible, Arc'teryx will repair the item at no charge to you. They have repair centers in both Europe and North America that employ the same custom machinery and techniques that they use to create the original products. If the product is not repairable, or the cost of the repairs exceeds the value of the product, Arc'teryx may, at their discretion, choose to replace the product instead.

What happens if I rip or tear my jacket or pants?
Skis, snowboards, crampons, axes and other sharp equipment will damage clothing and gloves if they come into direct contact with them. Rips, tears, burns and punctures can occur during normal use and while carrying your equipment, and are not covered under the terms of the warranty. To assist you in keeping your product in optimal working condition, Arc'teryx offers a variety of repairs for a reasonable charge. Contact them and they will be happy to discuss your options.

What if I want to have my garment altered or tailored?
Arc'teryx does not offer custom alterations or modifications to their packs or garments at this time. For products made from GORE-TEX® fabrics they suggest using a GORE-TEX® authorized repair facility for alterations. There is a list of GORE-TEX® authorized repair shops in your area on the GORE-TEX® website.

Do alterations void my warranty?
Arc'teryx understands that individuals may, on occasion, wish to tailor their Arc'teryx products to suit their needs. If something should fail which is unrelated to any alterations, Arc'teryx will stand behind their products, provided that the Arc'teryx product is being used as intended. For a list of alteration facilities in your area, please visit the GORE-TEX® website.

How long will it take if I send my product in for warranty assessment and/or repair?
The typical turn-around time is 15 to 20 business days from the time they receive your product to the time they ship it back to you. Keep in mind that winter is the busiest season for warranty and repair service. Arc'teryx will provide you with updates and more accurate estimates throughout the process.

How do I prepare my item for return to Arc'teryx?
In order to comply with health and safety regulations, as well as for the protection of their staff, Arc'teryx kindly asks that all products be cleaned before being sent to them. Products that arrive unwashed may be subject to a cleaning fee before assessments can be made. To find out how to properly clean your garment, please visit the Arc'teryx Product Care page.

How are shipping costs handled?
Customers are responsible for shipping items to Arc'teryx, and Arc'teryx will cover the return shipping costs. Please ensure that you ship the product using a carrier that can provide you with tracking information and proof of delivery. Customers are responsible for their product until Arc'teryx has signed for its delivery.

What do repairs cost?
Repairs covered under the terms and conditions of the Arc'teryx warranty policy are performed at their expense. Costs for non-warranty repairs will vary depending upon the situation. Arc'teryx will provide you with as many repair options as possible based upon the amount of work and materials required and the expected end result. After your product has been received and assessed, Arc'teryx will be able to contact you with repair options and costs. Repairs requiring payment will never be performed without your authorization.

What is the Voltair Avalanche Airbag Limited Warranty?
The Voltair Airbag will be covered under warranty for manufacturing and material defects for the duration of three years after purchase or 50 inflations, whichever comes first.

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