Designed to alleviate overheating whilst running, the Aero Hi-Rise Compression Tights feature innovative HeiQ Smart Temp technology that dynamically responds to body heat to keep you cool when your run heats up. Innovative HeiQ Smart Temp technology senses any rise in body temperature, increasing the evaporation of perspiration through the fabric to keep you cooler for optimal performance. Hi-Rise power mesh waistband for body sculpting secure fit includes a zip back pocket and side pockets, providing ample bounce-free secure storage for phone, cards and keys. Powerful, lightweight PWX fabric with circular knit 360-degree stretch, reduces muscle movement and damage whilst maintaining flexibility for ultimate sports performance. Moderate graduated compression boosts blood flow to muscles, improving performance, lowering risk of injury and speeding up recovery. High quality and durable yarns outlast the competition to provide squat proof coverage and keep the skin cool and dry. Reflective 2XU logo on thigh and signature X logo on calf. Features Full length compression tight PWX highly powerful, lightweight and flexible compression fabric HeiQ Smart Temp technology keeps you cooler Graduated compression for improved circulation Hi-Rise power mesh waistband for body sculpting secure fit Side pockets for secure bounce-free storage Flatlock seams to reduce chafe Signature reflective X logo on calf Fabrics 72% Nylon, 28% Lycra 72% Nylon, 28% Lycra 68% Nylon, 32% Lycra