Cool and Comfortable There's no such thing as too much stretch when it comes to an athletic underwear. Designed entirely of a breathable, lightweight sport nylon/spandex fabric, and an irresistible silhouette, the VAUX VX4 collection will ensure that you have all the sexy spandex you need to stay cool and comfortable as you work up a sweat. Choose a form-fitting elastic bands harness, complete with a silicone vinyl patch at center chest provide plenty of stretch in between two metal O-rings or pair with the matching VX4 low-rise brief or jockstrap for a matching set.