The Evoke Orion Removable Crown Padded Helmet Liner is a padded, moisture-wicking, removable, washable, and replaceable liner designed for use with Evoke Orion Jockey Skull helmets. It is available in black to match your helmet and comes in different thicknesses for a better fit. Sizing guide: Small – liners available from 53-56cm, Medium – liners available from 57-59cm, Large – liners available from 60-62cm. Orion liners are also available in different thicknesses should you be between sizes. Orion Jockey Skull liners are available in Black to best match your helmet of choice.