Building on the Core Sweater’s popularity, this system will truly be used 3 ways over 4 seasons. The Spyder Men's Core Sweater 3-n-1 System Jacket is the answer to winter. It uses the Xt. Laminate, an ultra-thin membrane that delivers superior waterproofness and breathability. This technology results in pliable fabrics that are lightweight yet durable. XT.L benefits include stretch recovery, which maintains the integrity of the fabric after seasons of hard core use. SPYLON is a durable water repellent finish applied to the fabric exterior to prevent the garment from absorbing surface moisture. The CORE fabric is Exclusive to spyder, Core is a special weave rib-knit face material with fleece backed fabric that has the look and feel of a sweater with the technical performance and comfort of a soft shell. Providing the benefits of wools warmth, the soft hand of cotton and the durability of polyester, this proprietary core technology delivers everything wonderful about winter sweaters. It’s a 2-layer lined shell jacket with a zip-in core sweater component jacket. A Removable heavy weather hood, internal drawcord at hem, and Velcro adjustable cuff with gusset give you ways to get the perfect fit, and seal out the cold. Core ventilation zippers vents excessive heat, and critical seam taping contributes to keeping out moisture. The powder skirt with snaps and gripper elastic has a handy snap back feature holds powder skirt away when not in use. The internal mesh goggle pocket comes with custom chamois lens wipe on carabineer with shock cord. An Internal zippered pocket keeps your stuff secure.