Made to wear under your baggies, the Castelli Trail Liner prioritises comfort, cooling and moisture management. It is made from light, airy mesh, with flat lock stitching ensuring a smooth finish, and is built around the soft KISS Air2 seat pad.
There's no fear the liner will shift and allow the seat pad to move out of place as you ride, since the waist is secured with elastic, while the leg endings are held firm by GIRO4 grippers, with the silicone arranged in vertical lines to offer compression without pressure.