evo.com | Burton Synthetic > The Burton AK Helium Stretch Hooded Jacket is built for days when every ounce and every move counts. Low-bulk ThermacoreECO insulation brings just the right amount of warmth without slowing you down, while the stretchy, breathable fabric keeps pace with uphill grinds and quick transitions. Designed to layer under a shell or stand on its own on breezy ridgelines, it stuffs neatly into its own pocket so it's always pack-ready. Lightweight, versatile, and sustainably made, it's the kind of piece that earns permanent residency in your touring kit. Thermacore Stretch Insulation (40g) Offers superior warmth-to-weight performance in a low-bulk design that won't restrict your movement, providing insulation that is designed to move with you and uses bluesign(R) approved materials that are safe for people and the planet. Slim Fit A close fitting, tailored fit that mirrors your body's silhouette, but still allows for a base layer and lighter midlayer to be worn underneath. Stretch Breathable Lightweight 20D Nylon / Spandex Plain Weave Water-Repellent Coated Fabric Utility Loop in Wearer's Left Pocket Packable into the Wearer's Left Handwarmer Pocket | Burton AK Helium Stretch Hooded Jacket Men's 2026 - Small Blue | Nylon/Spandex