High quality products last longer, make the customer happier, are superior in tough conditions and save valuable resources. A product sent to our customer service after 20 years for a repair to continue in use is not uncommon for us. Our promise is 100% waterproof, we give a 5 year guarantee on material and manufacturing and we guarantee spare parts will be available for all of our products for a period of at least 10 years after any product has been phased out. We are able to guarantee this quality level because we use high quality materials; our products are exclusively developed and manufactured at our manufacturing site in Heilsbronn, Germany. We insist on controlling quality standards ourselves and our numerous inventions keep setting new standards in the outdoor and bicycle industry.