South Carolina Triathlon TopAbout Size Custom Triathlon top Elastane provides muscle support and enhanced performance. Excellent stretch and recovery memory means that the garment moves with the body from start to finish. Fast moisture wicking Lateral Microperforated panels provide ventilation and fast drying. Made of 100% polyester 80% Polyester and 20% spandex elastane for front and back panels. Two side pockets to hold small water bottles or anything else. Front 6' zipper.