Simms Solarflex Armor ShirtSimms Shirt Size ChartWhen relentless heat threatens to cut short a pleasant afternoon tossing carefree casts, arm yourself with cool comfort and keep chasing those elusive fish. Simms' SolarflexA(R) Armor 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. CoolcoreA(R) fabric chills down as it gets wet, giving you natural relief from the heat. Mesh panels on the sides and arms add breezy ventilation that will keep you feeling fresh on the water from dawn until dusk. It is finished with a full-coverage built-in gaiter for all over protection.FEATURES AND BENEFITSA fishing shirt armed with sun protection and cooling comfort.COR3(TM)(TM) performance standard: Anti-odor treatment, mechanical wicking knit structure, and UPF 50 ratedCoolcoreA(R) fabric technology - up to 30% lower surface temperature when wetPolygieneA(R) fabric treatment - natural and permanent odor-controlPatent-pending full-coverage gaiter designMesh inner side and arm panels for ventilationQuick-dryingBody: 84% polyester / 16% spandexA(R); Upper sleeves and side panels: 91% polyester / 9% spandexA(R)FABRICBody: 84% polyester/16% spandexUpper Arm & Side Panels: 91% polyester/9% spandexTECHCOR3(TM) CoolcoreA(R) PolygieneA(R) SolarflexA(R)APPROX. WEIGHT: 7.5 ozSIZES: S-XXL