Dainese - Back Protectors - Auxagon Tech level 1 certified ski back protector. Enjoy your days in the snow with the safety and confidence you need to push yourself to the max on every slope Level 1 certified ski back protector in Auxagon Tech. Wearable alone and compatible with Dainese HP S jackets. Spend your days on the snow with the confidence of expressing yourself to the fullest on every descent. The Auxagon back protector is lightweight, and highly protective. The geometry of its construction in Crash Absorb memory foam, inspired by auxetic shapes, follows the shape of the back, ergonomically adapting to the skier's body.