The Endura D2Z Short Sleeve Jersey and Bibshort combination provides the same aero advantage as the Roadsuit for the rider looking for the versatility of a 2 piece outfit. A lightweight internal hem elastic with silicone gripper hold the jersey in place while the full front zip allows quick venting when the temperature rises.Optimized for Road bike position, speed range; 32 to 50kph,Full length front zip,Multi-fabric construction for aero optimisation,3 rear pockets with Spoiler Cover,Raw edge hems with super fine silicone grippers.ConstructionNylon 72%,Polyester 18%,Elastane 10%.