Hutchinson pro quality inner tubes are result of over 120 years of innovation in the tube and tire industry. Founded by American Hiram Hutchinson, the French company has developed a super durable tube that yields a very consistent thickness for maximum strength. The thickness has been increased by 20 percent (compared to standard tubes) for greater puncture and pinch resistance. A precisely-welded Schrader valve stem helps prevent tearing at the valve stem under extreme use and abuse.