Puncture resistant neoprene makes these chainstay protectors extremely durable and help reduce noise. The interior Lezyne logo pattern is made of slip resistant rubber. The fabric stretches to a tight fit and is held in place with heavy-duty velcro. Machine washable.Durable ProtectionHeavy-duty, puncture-resistant neoprene protects chainstay and reduces noise.Slip-Resistant & WashableInterior Lezyne logo pattern is a slip-resistant rubber. Machine washable.Tight, Secure FitFabric stretches to a tight fit. Held in place by heavy-duty Velcro..Small: 95 x 250 mm,Medium: 130 x 250 mm,Large: 180 x 250 mm.