Endura mt500 full zip ii long sleeve jerseythe endura mt500 full zip long sleeve jersey is designed for changeable conditions combining multiple materials for optimum performance in a wide range of weathers the insulated wicking body is combined with mesh underarm panels for optimal ventilation providing consistent temperature management in both warm and cool climates the sleeves have been made from a durable nylon ripstop material that protects you from the cold while also providing addition