Fit, fabric and functionality. This tank top checks all the boxes.Accelerates wicking and provides next-to-skin comfort in moderate to hot conditions. Offers superior protection from UVA/UVB rays with tight fabric construction and modified fibers. It pulls moisture to the fabric's surface for fast-drying and next-to-skin comfort. Comfort stretch for ease of movement. Venting in the back for added breathability. 89% Polyester 11% Elastane.