Endura photon waterproof packable jacketfounded in scotland in 1992 endura has gone on to become the largest brand of cycling clothing in the uk endura is focussed on function and longevity without cutting corners on material and construction fabric tech waterproof measured in mm of water it can be held by the fabric without leaking 1 000mm is the minimum measurement needed to pass the accepted definition of waterproof all endura waterproof garments are 5 000mm and above breathable mea