- 2Mm powertex neoprene that prevents nicks and scratches while reducing the noise of chain slap - Tightly stitched with heavy-Duty thread to add extra strength and durability - Jumbo: Taper (95Mm to 85mm and is 254mm in length) - Standard: Taper (85Mm to 75mm and is 254mm in length) - Super jumbo: Taper (117Mm to 107mm and is 254mm in length) - Jumbo 29er: Taper (95 Mm to 85 mm and is 295 mm in length) - Swingarm: Taper (183Mm to 175mm and is 227mm in length)