Just like new! The Samshield Shadow Matt Replacement Liner is a memory foam liner with unmatched comfort and ensures a constant thickness over the years of use. The liner is removable and machine washable. A clean helmet interior means no more skin issues! This replacement liner is intended to replace your existing liner. It can be used in both the Samshield Shadow Matt and Premium helmets. If you wish to change the helmet size by using a different liner you can do so but only using the liners that fit in your shell size. Please see size chart for sizing options.