NCAA Notre Dame Fighting Irish Shamrock Deluxe Replica Football Helmet The Riddell Deluxe Replica helmet is a full-sized helmet at a fraction of the cost! Official colors, the same polyvinyl-coated facemask as the authentic helmet, decorative (not authentic) interior padding, 2-point chin strap. Great for autographs. Official team colors and decals. Riddell is the exclusive licensee for the Shamrock Helmet. Collectible, not to be worn for play. Includes the same stainless steel rod and acrylic base as Riddell's other Notre Dame full-size helmets.