Overview: Look cool and stay comfortable with the Pro Summer Sleeveless Jersey! Perfect for hot days, it's lightweight and breathable to keep you riding all summer, with a sleeveless design that eliminates tanlines. Now the Technical Stuff: Fully hidden YKK Camlock zipper 3 rear pockets with a reflective tab on the left side Rear silicon gripper Compression fabric collar Body fabric - Extra light, fast drying grid fabric. Much lighter than our standard but still spf 30+ Side Panels Fabric - MITI Kite mesh. We use this on our base layers and it is the lightest out there. It’s very durable but a little transparent, especially on the side panels so keep that in mind. Weight (Medium): 102g SPF 35+ Fit: This jersey is designed to be fairly snug. We would categorize it as fitted or race fit.