The Cliff Keen E58 Headgear is the latest signature 4-strap headgear designed with the same idea in mind when Keen patented the first one almost 50 years ago — the original foam E41 headgear. Similar to the original, the E58 has VNF foam, a lightweight, comfortable fit and reduced friction on the mat. Comes with SP94 chin strap. Is fully adjustable and can be adjusted to fit youth sizes. The new "Cliff Keen Signature™" 4-strap FOAM headgear is based on the revolutionary design of the original foam E41 that Cliff Keen patented nearly 50 years ago. The "Signature's" VNF foam boasts these same qualities that made it the best-selling ear guard of all time: Lightweight, more comfortable fit and greatly reduced friction on the mat. Fully adjustable. SP94 chin strap pad included. Can be adjusted to fit youth sizes too