Compression : Ultra-tight, second skin fit. Super-light UA HeatGear fabric updated to deliver superior coverage & support Signature Moisture Transport System wicks sweat to keep you dry & light Lightweight, 4-way stretch construction improves mobility & maintains shape Locked-in UA Compression fit increases muscle power so youll feel like you can do anything Ergonomic flatlock seams deliver a comfortable, chafe-free fit Super-soft ARMOUR graphic elastic waistband with a rise that sits just right on your hips Polyester/Elastane