performance comfort. the nike pro hyperwarm aurora half-zip women's training shirt is made from sweat-wicking stretch fabric with a mock neck to help keep you dry and block out the cold.. style tip. this style is made from lightweight fabric for excellent breathability and is designed to be worn as a first layer. it can be worn alone, but we recommend you layer it under other clothing during your workout.. benefits. dri-fit fabric helps keep you dry and comfortable. underarm gussets and stretch fabric enhance your range of motion. brushed interior feels soft and enhances warmth. mock neck zips up to the chin for warmth and protection from the elements. elastic cuffs with thumbholes for coverage that stays in place. flat seams feel smooth against the skin as you work out. product details. fabric: dri-fit 88% polyester/12% elastane. machine wash.