"What Our Gearhead® Experts Are Saying: ""I’ve worn the Basic Skins for surfing, paddle days, and even long swims. The UPF 50+ coverage is legit, and the fit is snug enough to layer under a wetsuit but still comfortable on its own. It dries fast, doesn’t chafe, and the strategic seams really help reduce irritation. A total go-to sun shirt for water days."" We count on the O’Neill Basic Skins 2 Long-Sleeve Sun Shirt when long days in the sun call for dependable protection and zero distractions. Built with O’Neill’s trusted performance design, this lightweight top delivers UPF 50+ shielding against harsh rays while offering the flexible, comfortable feel we want for paddling, swimming, or beach training sessions. Its 4-way stretch construction moves naturally through every stroke or wave, and the slim fit sits close without feeling restrictive—perfect on its own or layered under a wetsuit. Strategic seam placement helps reduce irritation, while overlock stitching boosts durability for season after season of surf and sun. Quick-drying and soft against the skin, this sun shirt keeps us focused on the water, not the weather."