Based on R&D of extreme survivalists involving mountain guides, polar scientific researchers and polar explorers, 5D Anti-Cold Polar Down Jacket applies wearable technology to guarantee the safety in extreme environment. What makes it outstanding is the combination of Gore-TEX and Cordura fabrics which feature water-proof quality, air permeability and endurance, as well as the baffle box craft which helps preserve heat and provide related protection in various extreme conditions. Moreover, it can play a role in daily outfit since it’s not only functional but also fashionable.