The nalgene otf llb custom bottle is unique to leisure lakes bikes with our logo printed on the bottle due to the great standards that nalgene bottles have set we wanted a custom bottle with our name on it the leak proof closures mean no mess and the shape of this water bottle results in it fitting well into most cup holders and bike cages you only need one hand when operating this bottle so if yoursquore out on your bike it provides a convenient quick access opening and the bottle its bpa