This shirt is truly awesome, featuring Jason Mathias's "Spiny Lobster" fine art design sublimated onto our superior technology that definitely makes for a top favorite among all divers, free divers and outdoor enthusiast worldwide! Say goodbye to sunburns and say hello to the supreme comfort of the Jason Mathias Solar Performance Long Sleeve shirt! This awesome shirt offers superior sun protection and performance qualities. So comfortable that you feel like you're not even wearing a shirt! Shirt doesn't snag or catch which makes it a must when doing what you do best! Featuring up to UPF +50 solar protection, the Solar Performance Long Sleeve is lightweight, comfortable, and sure to keep the sun's rays from penetrating through to your skin. This fabric is powered by PURE-tech moisture wicking technology which will keep you cooler in the summer and warmer in the winter. Fabric: 4.1oz. | 100% Microfiber w/ UPF Protection Sizing: XS-4XL Made in USA