Women's Mesh UV Protection Shirt (Large (Bust 40-42"), Bahamian Blue) 30+ UPF/ 96.7% UV Blocked 100% Nylon. Super lightweight SPF fabric; weighs only 6 oz Mesh back ventilation. Upper arm pocket with velcro closure for small items like keys or money. 3 inch torso to cuff side panel mesh for maximum air flow (You will not believe how cooling this can be:) Adjustable velcro neck closure; tab can be folded back with velcro closure