Under Armour Dynasty HeatGear Vented Compression Running Shorts Polyester/Elastane 4-Way Stretch Fabrication - Allows greater mobility and maintains shape. Signature Moisture Transport System - Wicks sweat away from the body, keeping you cooler and drier. Anti-Odour Technology - Prevents the growth of odour causing microbes. Smooth Flat Lock Seams - Allow a full range of motion without chaffing. Engineered Mesh Panels - Enhance ventilation and airflow, help you stay comfy at all time.