The umaJack features the latest ASSOS AEPD (Advanced Ergonomic Pattern Design) research. Exclusive ASSOS airBlock 851 fabric (wind-stopping laminated textile sandwich) on arms, chest and stomach areas. Shoulders, upper back and neck are wind protected, made of an ASSOS specific low-volume, maximum stretch, fabric. On the right side, one zippered safety pocket. On the back, two, newly developed safer and more feminine, easy access pockets, as well as reflective safety stripes. Engineered for winter riding conditions. Underneath you just wear an ASSOS powerStatic body insulator. On cold, windy days carry a climaJet shell along.