ION Thermo Top SS men 2026

ION’s Thermo Top Shortsleeve Men delivers lightweight UV protection with smart details for life on the water. Built with Flat_Lock seams, it combines durability and flexibility in a comfortable fit. With a UPF rating of 35–50+, it shields you from harmful UV rays — lighter colors provide UPF 35, while darker colors reach the maximum 50+. The integrated Slip_Loop lets you connect the top to your bottoms so everything stays in place, while a Sunglasses_Loop at the neck allows you to secure your watersport sunglasses.