Whether its an adventure in the mountains or a cold-weather hike, the Outdoor Research Deviator Wind Vest is a versatile layer that always seems to be with us. The polyester shell fabric is stretchy and durable and is coated with a PU treatment to shed moisture. The windproof, yet breathable design ensures we stay comfortable, while the zippered hand and chest pockets stash our essentials. The extended collar adds extra warmth and weather protection, while the elastic arm holes and movement mirroring stretch moves with us for a comfortable fit.