Protec Fullcut Classic Independent Blue Skateboard Helmet - X-SMALL This is the original 1970&#39;s skate helmet that became the most recognizable helmet of all time. It features Classic ear protection styling, a 2-Stage premium liner, stainless steel hardware, and soft tubular webbing. Bring back the good vibes of the 70&#39;s by rockin the Full-Cut. Size: X-Small 20.5-21.3in - 52-54cm Hat Size equiv: 6 1/2 to 6 3/4