Raptor's replacement liners are made from the same moisture-wicking superior comfort liner. The cheek pad difference between liner sizes is 1/4 inches, to gain more room, go up a size and to decrease, go down a size. All liners come with a one year warranty on parts and workmanship. Raptor distributing was established in 2004 with the goal of offering a quality product with the most wanted features at a reasonable price. There is a control for the quality and safety of everything that goes into the helmets. New helmets are continuously tested during the design process, and results are confirmed by internationally known independent testing labs. Raptor helmets are manufactured to DOT FMVSS218. Every batch of helmets is also randomly tested before leaving the factory to ensure that each batch meets the standards specified for that model. There are a full line of helmets like full face street, off road half helmets and open face and accessories for every helmet including mirrored shields, ear pads and snow accessories.