Arc'teryx Men's Gamma Hoody (Revised)

Hiking, climbing, or skinning uphill—the Gamma Hoody keeps you moving through rugged terrain. Weather-resistant fabric and a helmet-compatible StormHood™ shield from the elements while maintaining max breathability on that final summit push. Stretch material makes overhead movements a breeze, and durable face fabric stands up to rough scrambles.

What's been updated: Updated with increased recycled content and a FC0 DWR (Durable Water Repellent) treatment that’s free from intentionally added PFAS. Two zippered chest pockets provide added storage, while the single-point hood adjuster makes it easier to fine-tune your fit. Revised design lines create a more streamlined fit.

Features & Specs

Technical features

• Weather resistant
• Breathable
• Durable

Construction

• Brushed backer adds warmth and soft comfort
• Recycled Wee Burly™ double-weave nylon face fabric for breathable wind resistance

Cuff & Sleeves configuration

• Shaped cuffs with partial elastic provide coverage and seal out drafts

Design & Fit

• Stretchy fabric allows you to move more freely
• Regular fit provides freedom of movement
• Garment Centre Back Length: Size M is 29"/73.5cm - Varies by size

Fabric treatment

• DWR (Durable Water Repellent) finish repels moisture and is PFAS-free

Hem configuration

• Adjustable hem draw cord seals out drafts

Hood configuration

• Helmet compatible StormHood™ provides full coverage without impacting visibility
• Single pull adjuster does not restrict vision

Patterning

• Articulated patterning for unrestricted mobility

Pocket configuration

• Two hand pockets with zippers
• Two chest pockets

Sustainability

• Body - bluesign® approved material
• Recycled content
• PFAS (Per- and polyfluoroalkyl substances) Compliant

Zippers & Fly configuration

• No Slip Zip™ front zipper

Size XS, S, M, L, XL, XXL

Weight 465g / 1 lb 0.4 oz

Fit Regular

Sizing chart

Men's
Our size guide provides a general idea of how your body measurements correspond to our garments, however it does not fully reflect each item's unique specifications. Each piece is designed with specific fits tailored to the intended activity, taking into account ergonomics, comfort, layering systems, and optimizing the performance of fabric technologies.

Jacket/shirt sizing chart - new sizing

Your body measurements in centimetres

Size	Sleeve	Chest	Waist	Hip
XXS	78	84	69	83
XS	81	89	74	88
S	83	94	79	93
M	86	102	86	100
L	89	109	94	108
XL	91	119	104	118
XXL	94	129	114	128
3XL	96	139	124	138

NOTE: Men's fit has been updated with a revised fit. Medium size remains unchanged. Smaller sizes are now tighter and larger sizes are now looser. Arc'teryx sizes are intended to fit the above body measurements. If your measurements are between sizes, select a larger size for a looser fit or a smaller size for a tighter fit.

Activity Rock/Boulder/Hike

Model X000009905

Manufacturing facility Pt. Yongjin Javasuka Garment Ii (Hojeon), Indonesia

Fit & Sizing

Fit: Regular

Our classic fit is cut comfortably throughout the chest, waist, hip, and thigh. It allows freedom of movement, provides shape, and layers comfortably over or under our layers.

Materials & Care

Materials

• Lining: Warp knit mesh - 100% Polyester
• Body: RecNylon DBL Weave Solid, 186gsm - 88% Nylon, 12% Elastane
• Origin of fabric: TAIWAN
• Origin of dyeing: TAIWAN
• May release plastic microfibres into the environment when washing

Care

• Machine wash gentle low
• Tumble dry permanent press low
• Do not bleach
• Wash dark colours separately
• Do not dry clean
• Do not iron
• Do not use fabric softener
• Double rinse

Arc'teryx Layering Guide

Layers are the instruments of keeping you dry, warm and using your energy efficiently. Put into the right systems, a good sequence of layers provides you with weather protection, moves moisture away from your skin, conserves or dissipates heat, and does this in the least amount of time.