Arcteryx Men's Nuclei AR Jacket

Arcteryx Men's Nuclei AR Jacket

Arcteryx Men's Nuclei AR Jacket is rated 4.3 out of 5 by 3.
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4.3 Star Rating
$318.99   $399.00
20% off

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Product Description Item No.   10281237

Award Winner - Klettern Magazine Recommended (Germany)

Award Winner - Desnivel Gear Award Silver Winners - Midlayer Insulation

The Arc'Teryx Men's Nuclei AR Jacket is a belay jacket for staying warm on that frosty ledge. The belayer isn't just supposed to stand there and look pretty, but dang this jacket just can't help but excel in the looks department. Besides you working hard to keep your leader safe, you've gotta stay toasty to do so and Gore® N20mr-x WINDSTOPPER® fabric is your first line of defense against the cold. The jacket blocks the wind at your back and is highly water resistant for taking care of light moisture. Insulating you against dropping temps is Coreloft™ 100 and 40, a synthetic insulation that is hydrophobic and incredibly lightweight. When the going gets wet, it'll resist that moisture and still work to keep you warm, so you won't have to keep an eye off your belay duties. Once it's your turn to head up the route, stuff the whole jacket into the included stuff sack and clip it to your harness, not to be noticed again until you require more warmth.

Products on Sale are Discontinued Styles or Colors.

FEATURES of the Arcteryx Men's Nuclei AR Jacket

  • WINDSTOPPER® outer fabric delivers breathable wind protection and sheds falling snow and dripping moisture
  • Insulated with warm, durable Coreloft synthetic insulation that retains warmth when wet and has quick drying properties
  • Taped seams for added weatherproofness
  • Inner quilting allows the insulation to conform to the body, trapping heat closer to your core
  • Insulated, helmet compatible Stormhood™ is designed to give you full coverage without restricting movement or visibility
  • Laminated brim has adjustable hood cinch cords
  • Micro-seam allowance (1.6 mm) reduces bulk and weight
  • Articulated elbows and gusseted underarms for improved fit and range of motion
  • Full front zip with chin guard and wind flap
  • Two hand pockets with WaterTight™ zippers
  • Packs into internal mini stuff sack
  • Stuff sack can be clipped to a harness
  • Internal mesh dump pocket

- + Product Specifications
Windproof: Yes
Weight: 16.4 oz
Back Length: 31.5 in.
Disclaimer: We only ship this brand to US Addresses.
Hood Type: Helmet Compatible, Insulated
Breathability: Good Breathability
Product Technology: GORE Windstopper
Exterior Pockets: 2
Insulation Details: 100 g Coreloft Insulation
Features: Helmet Compatible Hood, Insulated, Windproof, Zipper Garage
Gender: Mens
Best Use: Ice and Mixed Climbing, Climbing, Hiking, Mountaineering and Alpine
Jacket Length: Hip
Fit Type: Slim Fit
Insulation: Synthetic

WINDSTOPPER fabrics utilize an ultra-light, ultra-thin membrane to block wind while allowing interior moisture vapor to escape. This will keep your body and your inner layers dry and comfortable.

Rated 5 out of 5 by from Absolutely Amazing!! I do not know how to define this jacket, Mid layer, top layer? Beautifully built very water resistant, (even in heavy rain) and it breaths. It looks so good I almost do not want to use it climbing. It is a perfect Winter go any where piece, it also, (so far), works better than any mid layer I have ever owned. It is a substantial piece covering the butt and hood cinches well around the neck. All this and it will pack in a Tiny included stuff sack, it defies logic. So far the outer shell is thin but appears extremely durable. I am 6'5" tall and 220 Lbs, an XL fits me well with long enough sleeves. This jacket is built for tall people. I will use it for Skiing, Snowshoeing and Climbing and probably an everyday jacket through the winter both mid and top layer.
Date published: 2015-11-19
Rated 3 out of 5 by from great jacket, can't say the same for sizing I was so excited to receive this jacket in the mail but my joy quickly turned into disappointment. I admit the jacket felt good and well constructed as one can expect from Arcteryx jackets. However, I swam in my usual size, medium. I am 68" and 167 lbs. and every Arcteryx jackets and shirts I own are medium. I am not talking about 1-2 pieces but I have over 20 jackets and shirts. I was hoping to replace my Atom AR with this but this fit me like large. I realize this is designed for outerwear rather than layering piece like Atom series but still, it fits me bigger than Fission SV which is expedition fit. I find Arcteryx sizing less and less trustworthy now. Arcteryx used to be consistent with their sizing but ever since they are outsourcing their production to China and other countries, the quality is kinda still there but the sizing is off IMO. Anyway, this went back and kept my Atom AR as a result.
Date published: 2015-12-21
Rated 5 out of 5 by from Light and very warm Jacket is hyper warm and wind proof. Sat through a rain storm and stayed dry as well, great looking jacket as well!
Date published: 2017-01-09
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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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