We've created an advanced sleep system for better rest & recovery. The pattern inside the fabric returns infrared energy to your body, boosting localized blood flow & increasing the amount of oxygen reaching your muscles to restore your muscles faster. Soft knit fabric is lightweight & comfortable. 4-way stretch construction moves better in every direction. Material wicks sweat & dries really fast. Raglan sleeves. Shaped, fish-tail hem & back cut-out detail.