YOCISCO Essentials ISO Briefs delivers superior comfort with sophisticated, ultra-soft bamboo fabric that stretches with your full range of motion. Our bamboo fabric is hypoallergenic, anti-static and sits well next to your skin. It also prevents rubbing and chafing while the moisture wicking fabric absorbs moisture away from your skin, keeping you drier. The lift fit pouch maintains comfort and support, not to mention keeping your family jewels lifted for a sexy full look once your pants come off.