Go ahead, get sweaty. The Swiftly Tech 2.0 collection, powered by seamless construction, are the ultimate tops for running and training. skip-the-chafe, seamless construction Minimal seams to reduce chafe Lightweight Added elastane improves stretch and shape retention Mesh construction for breathability 100% of the polyester in this product is recycled (excluding trims) features Designed for: Run Silverescent® technology: Powered by X-STATIC®, it inhibits the growth of odour-causing bacteria on the garment Reduced chafing : Seamless construction reduces chafing Goodbye, cold ears: Shaped to keep your ears warm and cozy Ventilation: Mesh construction for breathability Fit : Body Skimming, hip length