The 7Sphere Hydro_bot Jacket\'s ground-breaking smart sweat technology keeps you dry, warm and performing at your very best for the entire ski day. By actively pumping out moisture from inside the jacket to the outside, the electro-osmotic Hydro_bot membrane protects you from the dreaded, post-activity chill caused by trapped moisture. The more you sweat, the more you get with this jacket as the faster you sweat, the faster the moisture is transported out of the jacket. Better still, unlike jackets with traditional membranes, Hydro_bot is unaffected by sub-zero temperatures meaning it will keep you dry and protected from the cold when it matters most. The jacket’s Hydro_bot technology is operated via a control box on the jacket and via a customized App (available on Apple and Android phones).