FEATURES of the Arcteryx Men's Atom AR Jacket Light, durable and wind resistant Tyono? 30 face fabric withstands abrasion and wear while the DWR finish repels moisture Warm, quick drying and resilient Coreloft synthetic insulation: 120 g/m2 in main body, 80 g/m2 under arms Insulated, tall collar is soft next to skin and layers easily Two hand pockets with zippers, internal zippered chest pocket Jersey knit stretch cuff is minimal to allow for easy layering Drop back hem has an adjustable drawcord to help seal out the cold Articulated elbows and gusseted underarms for improved range of motion and comfort Athletic fit for a slimmer more flattering profile Full front zip with insulated wind flap Great warmth to weight ratio SPECIFICATIONS of the Arcteryx Men's Atom AR Jacket Weight: 15.7 oz / 445 g Fit: Athletic, hip length Gossamera - 100% nylon Coreloft 120 insulation (120 g/m2) Coreloft 80 insulation (80 g/m2) ARC'TERYX ATHLETIC FIT: The Arc'teryx Athletic Fit garments are considered their "standard" fit and feature complex patterns that utilize anatomical shaping and gussets to enhance motion and eliminate any excess bulk. Athletic fit styles are trimmer than Arc'teryx relaxed fit styles, but still offer room for a base layer, a light fleece mid-layer, and a synthetic or down filled mid-layer. Put simply, their Athletic Fit should fit true to size, but be sure to check out the size guide to learn how to calculate your body measurements before selecting a size. This product can only be shipped within the United States. Please don't hate us.