Minimal seams to reduce chafe Lightweight Mesh construction for breathability Added elastane improves stretch and shape retention 100% of the polyester in this fabric is recycled Skims your body Meets at your waistband so it won't ride up on long runs or race day Silverescent™ technology, powered by X-STATIC®, inhibits the growth of odour-causing bacteria on the garment 54% Nylon, 40% Recycled polyester, 3% Elastane, 3% X-static® nylon