Nike Pro Combat Hyperwarm Compression Tights - Boys' Grade School The Nike Pro Combat Hyperwarm Compression Tight is a body-fitting tight, perfect as a first layer under athletic uniforms or training in cold conditions. Contrasting flatseam construction provides durability and clean finish. The Dri-FITŪ fabric is brushed on the inside for maximum comfort and warmth. 88% polyester/12% spandex. Imported.