Simms Solarflex Half-Zip LS ShirtSimms Shirt Size ChartWhen relentless heat threatens to cut short a pleasant afternoon tossing carefree casts, arm yourself with cool comfort and keep chasing that elusive two-footer. Simms' SolarflexA(R) 1/2 Zip Shirt features hard-working COR3(TM)(TM) technology, with all-day odor-fighting and moisture-wicking protection. The shirt shields against the sun's harmful rays with a UPF 50 rating and a high-backed collar to protect your neck. Mesh panels on the sides and arms add breezy ventilation that will keep you feeling fresh on the water from dawn until dusk.FEATURES AND BENEFITSA quick-drying shirt with sun protection for fishing during the dog days.COR3(TM)(TM) performance standard: Anti-odor treatment, mechanical wicking knit structure, and UPF 50 ratedMesh inner side and arm panels for ventilationHigh neck for better sun protectionSunglass chamois inside bottom hemQuick dryingBody: 84% polyester / 16% spandexA(R); Side panels: 91% polyester / 9% spandexA(R)FABRICBody: 84% polyester/16% spandexUpper Arm & Side Panels: 91% polyester/9% spandexTECHCOR3(TM)SolarflexA(R)APPROX. WEIGHT: 7.5 ozSIZES: S-XXL