I bought this to use with my Leatt helmet with built-in hose channel, so I was expecting a good fit. No luck; the hose is too short. By the time you place the drinking bit where it needs to be, the quick connect is sticking straight out the helmet instead of there being a little bit of hose left so the assembly can follow the curve of the helmet. I haven't used it yet because now I have to mess around with BTO who in turn I guess will go to Leatt. If I knew the type of hose, I would go try and find some locally. It just irritates me when something simple like this isn't done right.