Long, straight-cut technical jacket for ski-loving youngsters. Knyken Insulated Youth Jacket is a unisex ski jacket, made of waterproof (water column at least 10,000 mm), windproof and breathable Bergans Element Active ® material. The warm ArcticInsulation lining ensures high comfort in the ski park. Knyken Insulated Youth Jacket features sleeves with Velcro adjustment, extended back and reflex details from 3M â¢.