PREMIUM MATERIALS - Italian technical fabric developed for triathlons wicks moisture away & dries very quickly. Keeps you cool & comfortable. Performance Fabric helps you stay dry and comfortable. Premium mesh back panels to keep cool. TRIATHLON CHAMOIS - The perfect thickness with over 100 perfectly sized holes to keep you cool and dry. Stomata technology speeds up air circulation with large particles for the perfect balance of comfort and performance.BONUS RACE BIB BELT - We include a bonus race bib belt with space for 6 energy gels with every Deux Roues Trisuit. HIDDEN REAR POCKET - Need to carry along any extra energy gels? You won't even notice the back pocket but you'll be glad it's there. UPF 50+ UV sun protection