This UA fabric wears like a second skin so you get the same powerful compression, plus extreme comfort for all-day wear. This ultra-tight, second-skin fit delivers a locked-in feel that keeps your muscles fresh & your recovery time fast. Smooth fabric provides extreme comfort and compression without restriction 4-Way Stretch fabrication allows greater mobility and maintains shape Signature Moisture Transport System wicks sweat away from the body Anti-Odor technology prevents the growth of odor causing microbes Smooth, chafe-free flatlock seam construction.