Long sleeve base layer designed to be worn alone or under training kit to aid performance and recovery. Engineered fabric with built in UV protection Factor 50+, that combines stretch and compression qualities to help maintain core body temperature during intense bursts of activity and rest. Ergonomically cut for a close and supportive fit and micro-flat lock seams to eliminate friction and irritation. Mesh underarm panels for improved ventilation. Printed Spalding logo left sleeve and reverse at neck. Size Age - Chest to fit 7/8 - 28/30" , 9/10 - 30/32" , 11/12 - 32/34" , 13/14 - 34/36"