The ArroWhere Lightweight Waterproof Jacket is made with a polyester 20,000 waterproof/breathability rated material that is also windproof. Included is a built-in carry bag that the jacket can be folded into. By incorporating the Diamondback, the Lightweight Waterproof Jacket definitely tells others where you are and that you are something that needs to be avoided. The ubiquitous sign of the split Diamond identifies the user as an island, or something to avoid - other vehicle operators should recognize this as something to avoid and take necessary action to do so sooner. The patent-pending Diamondback also allows users to ride on both sides of the road, which is significant if a user frequently uses both sides of a one-way street or road.