Worth Way More Than Its Weight in Warmth The men's Burton [ak] Helium Hooded Stretch Insulated Jacket is the midweight layer that should always be on the packing list. You can wear it hiking when it's cool and windy or under your shell to stay warm on a ridge top. It's stretchy enough for an unrestricted feel and breathable enough to wear when you're headed uphill. When you don't need it, it stuffs into its own pocket and easily stows in a small pack. Features: Super Packable It's so light and packable, there's no reason to leave it behind. Full of Stretch Stretch nylon fabric lets you move easily without feeling restrictive. Warmth that Breathes Low-bulk insulation adds warmth while staying breathable for hiking or skinning. Low Environmental Impact Bluesign® approved materials reduce impact on humans and the planet during manufacturing. Tech Specs: Fit: Slim Fit Warmth: 40G Thermacore Stretch Features + Tech: Lightweight Low-Profile Back of Hem Cinch | Media Port in Pocket | Packable into the Wearer's Left Handwarmer Pocket | Reflective Details | Stretch Fabrication | Ultimate combination of high CFM super stretch fabric and stretch insulation for high output activity | Utility Loop in Wearer’s Left Pocket | YKK® Zippers Hood: Fitted Fulltime Hood with Stretch Binding at Opening Pockets: Zippered Chest Pocket | Zippered Handwarmer Pockets Fabric: Stretch Breathable Lightweight 20D Nylon/Spandex Plain Weave Water-Repellent Coated Fabric Lining: Stretch Breathable Lightweight 20D Nylon/Spandex Ripstop Water-Repellent Coated Fabric Warranty: Lifetime Warranty Sustainability: PFC-free DWR Size Guide: Size XXS XS S M L XL XXL 3XL Arm (cm) 81.5 81.5-82 82.5-84 84-84.5 84.5-85.5 85.5-86.5 86.5-88.5 88.5-89.5 Chest (cm) 81-86 86-93 93-99 99-104 104-109 109-117 117-127 127-137 Natural Waist (cm) 69-74 74-79 79-84 84-89 89-94 94-102 102-112 112-130 Hips (cm) 85-90 90-94 94-98 98-103 103-108 108-116 116-126 126-133 Equivalent Women's Size XS S M L XL XXL 3XL *   Garment Inseam Short Regular Tall Body Inseam/ Inside Leg (cm) 77 83 88 Burton Men's [ak]® Helium Hooded Stretch Insulated Jacket - True Black