Made with KARUISHI™ stretch side panels, a light, warm and durable fabric with strong abrasion resistance and minimal microplastic emission reducing any adverse impact on the environment, the Descente Jeff Midlayer Men's Jacket has a tailored street smart aesthetic in a jacket built for the athlete. Designed to fit smoothly under a Descente parka as a liner when you need extra support this is insulated with Heatflex 100, a blend of 100% polyester and unique microfibers to trap in air and reflect the body’s heat back to you, keeping this insulation light weight, resilient, quick drying and washable too. This versatile piece is faced with 20 denier Ripstop for a lightweight, packable, piece with the versatility to extend your comfort range on chilly autumn training days and single digit ski days. When you want to be out there have the wardrobe you need to keep yourself comfortable so you can hit all the trails, leaving nothing behind by your carved tracks.