X-FIT BRIEF CUP RETENTION SYSTEM integrates a wraparound internal supporter for unparalleled comfort, fit and protectionLEG GRIPPERS stretch and adjust to keep the short from riding upULTRA CARBON FLEX CUP advanced multi-stage impact protection transfers shock away from vital areas while flex-curve design and orbital gel pad maximize comfort and fitConstructed with supportive four-way stretch anti-microbial fabric that wicks moisture away from the skin.X-Fit Retention SystemPlease note: Jocks and underwear are not returnable/exchangeable for any reasons except for shipper error.