The Kooga Mini Pro Pack Rugby Vest is a twin pack including a long sleeve undergarment and a rugby protection vest. The Kooga Mini Pro Pack Rugby Vest features padding closed cell foam padding on the shoulders and sternum. Breathable lycra construction for comfort. Thermo Skin Undergarment stimulates blood flow, enhances circulation and increases oxygen flow which reduces the build up of lactic acid during and after exercise. Compression support reduces muscle oscillation. IRB Approved. Sizes Available: Small Boys (26/28" chest), Medium Boys (28/30"), Large Boys (30/32").