NWT Men's CW-X Conditioning Wear PerformX Tights Style# 221809 Material: 80% Polyester & 20% Spandex MSRP: $75 Attention: "Sizes Run Small" * PerformX Tights keep everything in correct alignment for optimum balance, efficiency and power by providing support for the IT band, hip flexors and quads as well as good stabilization of the knees, calfs and achilles. * The patented CW-X EXO-WEB™ acts as a suspension system for the quadriceps, increasing power at the push phase