Bluefin's Retro Design Technical Tee offers the best in comfort, functionality, and performance. The exclusive blend of 65% polyester/35% pima cotton features moisture-wicking and anti-microbial properties and a soft "peach fuzz" feel. The t-shirt has a SPF 40+ for extra sun protection. Lightweight enough for even the most tropical conditions. An optical design Bluefin logo is prominently displayed across the back.