Made of stretchy, insulating neoprene, wetsuits keep you warm thanks to bubbles in the neoprene that trap warm air, and thermal linings then amplify the... Seamless Paddle Zones: Flexible design which utilizes minimal seam placement for comfort., Ultraviolet Protection: 50+ U., P. UPF 50+ Sailing Shorts O’Neill Thermo X Short Sleeve Thermal Rashvest – Andy Biggs Watersports Oneill Wetsuit Men Flexible design which utilizes minimal seam placement for comfort. O'Neill Thermo X Shorts 8oz – 101 Surf Sports THE DETAILS: Thermo-X Hyperdry: Max insulation with minimal water absorption and DWR coating. O’Neill’s Thermo-X and Thermo layering fabrics provide incredible insulation with low bulk and quick-dry properties., Seamless Paddle Zones:. 220g Nylon/Spandex with HyperDry for maximum insulation and minimal water absorption., Maximum core insulation., 4-Way stretch fabric