Carolina Panthers Riddell NFL Authentic Revolution SPEED Pro Line Full Size Helmet. Riddell's Revolution Speed helmet has taken the football world by storm - and now, the speed helmet is available as a licensed authentic helmet. With a distinctive, aggressive shell design, the speed helmet is being adopted by premier athletes at a furious pace. As a collectible, the NFL Speed Pro Line will be available in all 32 teams, as well as select colleges coming soon. The Speed Pro Line helmet uses the special order face-mask worn by most of the star players who choose to wear this helmet. Internal padding is reflective of the "Speed Classic" design. A four-point chinstrap comes standard. Speed Pro Line helmets come in a Revolution retail box, with the addition of a "SPEED" sticker to distinguish it from our Revolution Pro Line helmets.