Designed for Running and Training Skip-the-Chafe, Seamless Construction(Click to Close) • Minimal seams to reduce chafe • Added elastane improves stretch and shape retention • Mesh construction for breathability • UV protective • UPF 40+ provides very good UV protection to only covered areas. This item's protection may be reduced with use, or if it gets stretched or wet. Sun exposure causes skin damage More wearing, less washing. Silverescent™ technology, powered by X-STATIC®, inhibits the growth of odour-causing bacteria on the fabric All: 53% Nylon, 40% Recycled Polyester, 4% Elastane, 3% X-Static Nylon Quick-drying fabric wicks sweat so you can focus on your form.