It's important to note that the G4 Liner comes in 6 different sizes. You can either choose the same size liner that you're replacing but you may also choose one other depending on your shell size. See below for the sizes that are interchangable. If you have any questions regarding a size switch plea..
This replacement liner fits all Peeksteep Benny helmets, and features a softer, more comfortable feel! There is only one shell size for the Benny helmet, so the size is determined by the liner which allows you to change the size as needed. Size chart:XS (20.6-21.5" ; 52.3-54.6 cm)S (21.4-22" ;..