Give your child core protection with the Shock Doctor™ Boys’ Core™ Brief with Bio-Flex™ Cup. Constructed with moisture wicking fabric, the briefs feature four-way stretch material for a super comfortable fit. An internal mesh cup panel keeps the cup secure while promoting air flow. This pack includes 2 pair of briefs and 1 Bio-Flex™ cup that is specifically designed to protect the most crucial areas. FEATURES: Flexible four-way stretch material in briefs Internal mesh cup panel keeps cup secure and promotes ventilation Comfort waistband for a secure fit Bio-Flex™ cup with gel perimeter pad for better comfort Engineered and designed to protect the most crucial areas Includes 1 Bio-Flex™ Cup and 2 pairs of Core Briefs SHOCK DOCTOR BOYS' SIZING CHART: Measure the circumference of your waist Waist (in.) 19-20 = XXS; XS GREEN CUP INCLUDED Waist (in.) 20-22 = XS; XS GREEN CUP INCLUDED Waist (in.) 22-24 = S; S RED CUP INCLUDED Waist (in.) 24-26 = M; S RED CUP INCLUDED Waist (in.) 26-28 = L; S RED CUP INCLUDED Waist (in.) 28-30 = XL; M RED CUP INCLUDED Shock Doctor Boys' Core Briefs with Bioflex Cup 2-pack