You count every ounce of weight on your bike before you show up at the start line, but what about your clothing? Endura's FS260-Pro SL Jersey features extra fine, super light, rapid-wicking mesh fabrics. Mesh underarms cool, a 3/4 length front zip adds ventilation, and UPF 25 rear panels protect your back from the sun's rays. Lightweight silicone internal hems hold the Lycra sleeves and waist in place. Plus, three minimalist rear pockets allow you to carry on-bike essentials.