Designed to alleviate overheating whilst running, the 2XU Aero Compression Tights feature innovative HeiQ Smart Temp technology that dynamically responds to body heat to keep you cool when your run heats up. 1. Full length compression tight2. PWX highly powerful, lightweight, and flexible compression fabric3. HeiQ Smart Temp technology keeps you cooler4. Graduated compression for improved circulation5. Drawstring waistband for an adjustable secure fit6. Rear zip pocket for secure bounce-free storage7. Flatlock seams to reduce chafe8. Signature reflective X logo on calf STAY COOLInnovative 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. WAISTBAND STORAGEDrawstring waistband for secure fit with zip back pocket providing bounce-free secure storage for phone, cards and keys. LIGHTWEIGHT & FLEXIBLE SUPPORTPowerful, lightweight PWX fabric with circular knit 360-degree stretch, reduces muscle movement and damage whilst maintaining flexibility for ultimate sports performance. MODERATE GRADUATED COMPRESSIONModerate graduated compression boosts blood flow to muscles, improving performance, lowering the risk of injury, and speeding up recovery. QUICK-DRYINGHigh-quality and durable yarns outlast the competition and keep the skin cool and dry. REFLECTIVE TRIMSReflective 2XU logo on thigh and signature X logo on calf. FABRIC COMPOSITION: Front panel: 72% NYLON, 28% LYCRA. Back panel: 65% NYLON, 35% LYCRA COMPRESSION RATING: MODERATE: 20-23 mmhg*