The Heyburn Jacket is a high-performance and lightweight, 3-layer (3L) shell engineered for demanding backcountry conditions and needs, featuring a 30k/30k waterproof and breathable membrane. Designed with a streamlined, function-first approach - no hand pockets so it can be easily worn with a pack and no bulky powder skirt - it utilizes a proprietary fabric that optimally balances durability, a soft handfeel, and advanced thermal regulation -enhanced by the NASA-developed Trizar internal backer. Light mechanical stretch ensures unrestricted mobility, while the ergonomic, feminine silhouette delivers a precise fit and won 't hold you back -on the uphill or downhill. Wild Rye Heyburn 3L Jacket Womens | Spruce | Large | Christy Sports