Arcteryx Men's Phase SL Boxer

Arcteryx Men's Phase SL Boxer

Arcteryx Men's Phase SL Boxer is rated 4.6 out of 5 by 18.
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4.6 Star Rating
$29.99 - $45.00
up to 33% off

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Product Description Item No.   10193139

The Arc'Teryx Men's Phase SL Boxer is a stretchy pair of men's underwear. SL stands for Superlight and Phase stands for moisture wicking. These undies are pretty simple, really. Pull 'em on and it's like they aren't even there with their light weight and soft touch and all the anatomical shaping and gusseted crotch you didn't even know you wanted. Lift a leg to climb a stair and the stretchy fabric follows your natural movements, plus a non-chafing label. Just as great for hiking, biking, lounging, and in the right situation, even swimming. Quick dry, my friend, just hang the wet pair on a line or a branch and grab your spares. Or wait until the others are dry.

FEATURES of the Arcteryx Men's Phase SL Boxer

  • Moisture-wicking
  • Breathable
  • Lightweight
  • Quick-drying
  • Minimal odor retention
  • Antimicrobial, odor-control fabric treatment
  • Hydrophobic materials will not absorb water
  • Mechanical stretch textile for unrestricted mobility-fabric is inherently stretchy without the use of Spandex fibres, making it more durable
  • Flat locked seams lie flat for added comfort
  • Anatomical shaping for fit and comfort
  • Gusseted crotch
  • Non-chafing label
  • Comfort waistband with laminated, soft-brushed finish
  • Phasic fabric has soft touch
  • Flat locked seams improve next-to-skin comfort
  • Encapsulated silver ions reduce odors
  • UPF 25 +
  • Activity: All Around

- + Product Specifications
Clothing Fabric: Polyester
Product Technology: Arcteryx Phasic SL
Disclaimer: We only ship this brand to US Addresses.
Weight: 1.9 oz
Gender: Mens
Features: Quick Drying, Sun Protective, Moisture Wicking
Best Use: Multisport, Backpacking, Hiking
Fit Type: Skin Tight
Arc'teryx Phasic SL

Arc'teryx Phasic SL
Arc'teryx Phasic is an innovative technology engineered for baselayers. It pulls moisture off of your skin and disperses it over a wider surface area, allowing for faster dry times. Phasic SL fabrics are utilized in lightweight layers that excel at keeping you cool and dry in warm weather activities. Plus it minimizes odor.

Check Out All Phasic SL Products >

Rated 5 out of 5 by from My husband loves these! I bought these for my husband, for our section hike, of the Appalachian Trail, through Shenandoah National Park. I knew that he would be uncomfortable and grumpy, if he got sweaty and began to chafe. I have had that happen and it is soooo uncomfortable and makes for a miserable hike. So, I bought him these. Who knew that underwear could be so expensive, but they were worth every penny. He couldn't believe how much I spent on them, but he didn't mind after wearing them to hike. He wanted to wear them for every day because they are that comfortable, but at the price, he needs to reserve these babies for hiking and backpacking.
Date published: 2014-12-05
Rated 5 out of 5 by from Great Short! These things are pretty expensive, but the Phase SL fabric more than makes up for it! Really light, but not see through at all. You can hardly tell that you have them on but they provide plenty of support for me. The polyester/polypropylene blend is fantastic. It dries extremely quickly and is extremely breathable and I have never seen anything that is more wickable. I have owned a great many brands/makes of tech fabric and the Phase SL is far and away the best I have ever seen. I wish I could afford to wear these everyday. Pay the extra and get these, I don't think that you will regret it!
Date published: 2014-07-01
Rated 4 out of 5 by from Great boxers but at a price I've been dabbling in the world of boxers. These are among my favorites. They fit great, are supportive, stay form fitting, regulate temperature, keep fresh, dry quickly, and seem durable from washing on delicate cycle or hand washing. The downside is that you can find these features at a cheaper price. While these certainly have my recommendation, I am also not sure if these warrant the price tag. One thing though is that body type has a lot to do with boxers in general. Don't trust anyone's word for it. You have to try it yourself.
Date published: 2016-08-24
Rated 3 out of 5 by from Comfy but weird fit I read a Q&A in this product on the Arc'teryx website, and Arc'teryx said this product is supposed to fit skin tight. Mine don't do that. The waist fits fine, but the bottom of the legs are loose fitting. I also wear Exofficio 6 inch mesh briefs. Similar but the Exofficio legs fit me better and are more to my liking. To bad, because Arc'teryx is my favorite brand. I bought two pairs, will return the one pair that is still new in the box. Disappointing fit for the cost. I guess they can't fit everyone perfectly.
Date published: 2016-06-07
Rated 5 out of 5 by from You won't need baby powder with them (: I've used many different underwear but I couldn't find the performance I wanted with any other brands. I've been buying arcteryx products for my ski gears, but I noticed that they are not experts only on ski stuff, these boxers will keep you dry and comfortable while you doin activities. I've used them while skiing, hiking, climbing even playin teniss.. They are little expensive but u get what you paid for.. They not expensive for no reason.. worth every single penny
Date published: 2014-06-26
Rated 5 out of 5 by from Best base-layer underwear for hiking I've ever used I bought two pair of these before a recent week-long trip into the Rockies. These dried so quickly that it was hard to tell if you were even sweating. Their range of motion is unlimited and support is also pretty awesome. I somehow misplaced one pair in the transition back to civilized life but wear the one pair I still have all the time. ,,Only complaint is that there isn't a fly in the front so you've gotta pull them down to take a leak, but who really cares?
Date published: 2012-08-26
Rated 5 out of 5 by from Great underwear, but not worth full price Absolutely love the fit and the cut in the crotch area. It's not apparent from the picture but the crotch area is not a straight flat piece, the middle section has a "v" shaped cut mid way which leaves a comfortable pouch for your junk to sit. I love these underwear, but do I love them enough to pay full price? I don't think they are worth double underarmour even though they feel great, luckily I bought many on sale.
Date published: 2014-11-03
Rated 5 out of 5 by from The perfect backpacking boxer This boxer has been perfect, so perfect in fact that I had to own two more pairs after a week of owning my first pair. They compress a bit, but not so much that I feel restricted. They allow me to sit without moving up or down my waist or without feeling any change of comfort in any part of the boxer. They don't ride up anywhere at all. They're soft, much much softer and with a much softer and more durable waistband than another major polyester boxer brand that most are familiar with. They dry very quick and are not quick to smell. And even though I've only owned them for about 5 washes thus far, they appear to be extremely durable.,,,,I would dock a star off for having no fly except for the fact that they just feel too darn good to lower the rating any. Plus, it might have been a necessary exclusion in order to guaranty ultimate comfort.,,,,Well worth the cost considering the comfort.,,,,I primarily use them for running, gardening, backpacking, and hiking.
Date published: 2014-05-26
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- + Size Guide

Men's Jackets, Shirts and Tops
SIZE X-Small Small Medium Large X-Large XX-Large
Chest 36" 38" 40" 43" 46" 50"
Waist 29" 31" 33" 36" 39" 43"
Hip 36" 38" 40" 43" 46" 50"
Sleeve Length 32" 33" 34" 35" 36" 37"
Numeric Size 36 38 40 43 46 50

• Arc'teryx recommends you calculate your body measurements using the info in the Measurement Guide below before selecting a product size. The measurements provided in their size guides refer to your body measurements unless otherwise specified.

• Check the fit type in the product FEATURES and SPECIFICATIONS and refer to the Fit Guide below to ensure you are ordering a product for the correct end use.

Men's Pants
SIZE X-Small Small Medium Large X-Large XX-Large
Waist 29" 31" 33" 36" 39" 43"
Hip 36" 38" 40" 43" 46" 50"
Length (Short) Subtract 2"
Length (Regular) 30 1/2" 31 1/8" 32 3/8"
Length (Long / Tall) Add 3"

• Please note that the actual pant length may vary slightly from the info above, depending on the intended end use of the product.

Men's Numeric Pant Sizing
SIZE 28 30 32 34 36 38
Waist 28" 30" 32" 34" 36" 38"
Hip 35" 37" 39" 41" 43" 45"
Inseam 32" 33" 34" 35"

• Several models of Arc'teryx pants are sized numerically and available in different inseam lengths. You will see these sizes reflected in the options in the Select a Size drop down menu for particular products.

• For all other pants available in numerical waist sizes where the inseam length is not specified, the inseam lengths provided above apply.

SIZE Small / Medium Large / X-Large
Head Circumference 21.7 - 22.4" 22.8 - 23.6"
Men's Gloves
SIZE X-Small Small Medium Large X-Large
Hand Width 7.6 - 7.9" 7.9 - 8.2" 8.2 - 8.6" 8.6 - 8.9" 8.9 - 9.3"
Hand Length 7 - 7.2" 7.2 - 7.5" 7.5 - 7.7" 7.7 - 8" 8 - 8.2"
Unisex Gloves
SIZE X-Small Small Medium Large X-Large
Hand Width 7.3 - 7.6" 7.8 - 8.1" 8.2 - 8.6" 8.6 - 8.9" 8.9 - 9.3"
Hand Length 7 - 7.2" 7.2 - 7.5" 7.5 - 7.7" 7.7 - 8" 8 - 8.2"


Chest / Bust - Measure around your chest / bust, holding the measuring tape under your armpit.

Waist - Measure around the natural waist, which is often the narrowest part of your waist.

Hip - Measure around your hips at the widest part.

Sleeve Length - With your arms in a slightly bent position, measure from the center of the back of your neck, along the length of your arm, to the wrist.

Inseam / Pant Length - From a standing position, measure from your crotch to your ankle.

Head Circumference - Measure the full circumference around the widest part of your head.

Hand Length - Measure from the tip of your middle finger to the base of the palm.

Hand Width - Measure the circumference of your hand around the knuckles, excluding the thumb.

• Please note that all the info provided above refers to body measurements, and NOT the dimensions of the garment.


Next to Skin Fit - These snugly-fitting garments are made with stretch fabrics to fit next to the skin to enhance moisture management and thermal efficiency. Garments in this fit category when constructed using Arc'teryx's heavier-weight AR and SV fabrics also perform very well as mid layer pieces, and users should consider selecting a larger size to accommodate a base layer underneath if the intention is to use this layering system as a mid layer option.

Trim Fit - Trim-fitted garments share the motion-friendly traits with Arc'teryx "Athletic" fit garments, but are patterned with lower volume for reduced bulk. These close-fitting pieces layer well under other garments.

Athletic Fit - This is the "Arc'teryx Standard" fit. These complete patterns utilize anatomical shaping and gussets to enhance motion by minimizing excess bulk. Easy layering under or over each item extends seasonal versatility and comfort.

Relaxed Fit - Relaxed fit garments rely on higher volume patterns and a reduced amount of articulation to offer roomy mobility.

Expedition Fit - Cut roomier than the Arc'teryx Athletic fit and suitable for winter/extreme conditions, Expedition (XPD) fit garments are cut larger to accommodate multiple layers without binding or restricting movement.

• You can find the fit type and additional fit info for Arc'teryx styles in the product description FEATURES and SPECIFICATIONS.

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