They have an all neoprene underside, which can clean in a quite swipe! The liner is removeable for easy cleaning, or to change to a different material. This 30″ Pro Choice cinch has seen some use, is quite dirty and could use a good cleaning, showing staining/discoloration on both the top and underside. Still in good conditon, works as it should and priced well. All stainless steal hardware, wider than most standard cinches at 5″, and so affordable!