The Björn Borg Performance Boxer 2p is a kids’ double pack of top training underwear made from soft recycled polyester stretch quality fabric. They have a mid-rise waist and a medium leg length with the perfect fit for better performance. With Hydro Pro functionality that wicks moisture away from the skin to keep them dry, smooth seams and elastic to avoid chafing, and a soft elastic logo waistband in microfibre for extra comfort.