A eurobike award winning jacket that uses the latest ultrasonic welding technology to create the first ever fully waterproof breathable soft shell jacket with protection from the rain and cold weather this could be the finest addition to your winter cycling wardrobe youll ever makethe ultrasonic welding is used to create externally sealed seams this means that they leave no way in for the rain and also leave a smooth finish on the inside to improve comfort to new levels the material has