Polycarbonate Composite Shell - Nearly indestructible inner shell is tough as nails but light as a feather VNF Foam Construction – Lightweight, durable foam provides superior protection and comfort. 4-Strap Adjustable Fit – Allows wrestlers of all sizes to find a secure, custom fit. Trusted by Champions – Based on the legendary E41 design, chosen by generations of top wrestlers. Ideal for weekend-long tournaments Building on a legacy that began over six decades ago, The Signature Headgear by Cliff Keen is the trusted choice for wrestlers who demand exceptional comfort, protection, and performance. Modeled after Coach Cliff Keen’s original foam E41 headgear, The Signature continues to set the standard, combining innovative design with unmatched durability. Whether you’re a seasoned competitor or just stepping onto the mat for the first time, The Signature’s advanced construction ensures you have the confidence to perform at your best.