Offering 50+ SPF sun protection, the Zoot Men's Endurance Tri Tank is complete with side-stash pockets and a SeamLink sewing design making this top-selling tri top sleek and comfortable. Created wtih an 80% nylon 20% spandex fabric, this Tri Tank offers four-way stretchability giving you an unrestricted range of motion. The ventilator mesh keeps you cool and comfortable throughout the race.