Compression Leggings Under Armour Rush Run Coldgear Tight-Blk. Under Armour Rush Run Coldgear Tight-Blk. Men's running compression leggings made of original Coldgear material with innovative Rush technology. Rush technology uses mineral-enriched fibers to recycle the energy used and return it to you. The material is lightweight, flexible, breathable and yet it warms you up perfectly. Elastic waistband. Strategically located ventilation panels. Elements made of highly reflective material for safe training even under degraded lighting conditions. Side pocket and zip back pocket. Length of legs from gusset 72.4cm. Material: 89% Polyester, 11% Elastane