Shock Doctor Boy's Core Brief with Bio Cup-Pack of 2 Cotton/Spandex Youth brief in convenient 2-pack BioFlex cup with gel perimeter for superior protection and comfort Moisture wicking 4-way stretch fabric for maximum ventilation Cotton/Spandex Youth brief in convenient 2-pack Moisture wicking 4-way stretch fabric for maximum ventilation Comfort fit waistband BioFlex cup with gel perimeter for superior protection and comfort Integrated technology