Grade up a model that does not have the ESP-80 shoulder, elbow protector protector! ! Recommended for Elf storage bag with a jacket. The many products that protector storage bag is equipped with Elf jacket, the rider has to be able to desorption according to the TPO. The material is polypropylene / urethane used, is the protector of the hard type to protect the shoulder and elbow. Not only your body, which protect also family life, it is protector. When send a safer bike life, please use it by all means. Material: polypropylene / urethane.