Light WindDry: Lightweight wind and waterproof 3 ply fabric, great stretch properties for a better fit and comfort. HeatMaxx inserts: Perfect for a wide range of climates, providing warmth and comfort, soft on the skin without the bulkiness. This fabric has a UPFSPF 50. Front two way reversed zip with inner flap and chin guard: Protection agains the elements, maximum ventilation without zipper rub. Signature gripper at hem: Better fit in motion. Front and back reflective pipings: Better visibility.