The Bollé Crunch 48 Eyesize is the smallest frame out of the varieties of the Bollé Crunch. These kids frames are equipt 2mm+ of polycarbonate lenses and are capable of having a strap attached for extra security. These shock absorbing glasses will make sure your little one is protected while they're on the move. Need 'em in prescription? Leave it to the sport opticians at SportRx to craft the ultimate pair of kids prescription sports glasses.