Designed for protection and comfort the jack wolskin jasper flex waterproof jacket is perfect for comfortable hiking in any weather on the outside of the jacket a texapore smoothlight waterproof and breathable layer offers protection against the wind in a smooth soft finish contoured taslan fabric stretches and contracts across the shoulders and back for comfortable and supportive ascents the jasper flex 3 in 1 interactive short system zips into compatible fleece layers and excellent storage