Triple 8's THE Certified Sweatsaver Helmet Replacement Liners are two-piece liners constructed with three super-comfy foam layers wrapped in plush fabric that wicks moisture away from the face, providing comfort and odor-control. The plush terrycloth liners attach with hook-and-loop tape and are easily removable for cleaning; wash gently by hand and air dry. Triple Eight's THE Certified Sweatsaver Replacement Helmet liners are available in four sizes: X-Small/Small, Small/Medium, Large/X-Large, X-Large/XX-Large. Use the liner that corresponds to the Triple 8 THE Certified Sweatsaver Helmet's size, or mix and match pieces between sizes to fully customize the fit. Manufacturer's 180-day limited warranty.