PERFORMANCE MEN’S TRIATHLON SHIRT: This sleeveless design has a dropped back hem for enhanced coverage and UPF 50+ sun protection so you can be at your best while swimming, cycling, and running. THREE POCKETS: 3 pockets sewn into the back of this triathlon tank provide essential storage you can reach from either side. FITTING TIPS: Zoot products are designed to be RACE FIT with integrated compression to maximize performance and aerodynamic benefits. For a less compressive feel we recommend you size up. If you are between sizes we recommend you size up. The model pictured is 6’0 (183 cm) and 165 lbs (75kg) and is wearing size MEDIUM. CAM LOCK ZIPPER: The 10 (25.4cm) cam lock zipper on this tri top allows for venting with soft-finish zipper binding to keep you comfortable. SEAMLINK STITCH: Seamlink stitch construction ensures next-to-skin comfort, our anti friction fabric minimizes chafing and stretches as you move. Each tri jersey is made with Italian performance endura fabric to helps you quick dry and stay comfortable and mesh panels for enhanced breathability.