Wearing a camelback
Whichver one you get (I have had several including a Lowe Alpineone and a couple of Camelback ones and the only time I have damaged one was when I put a crampon through one, tended to replace them after a couple of years for health & safety reasons!), consider carrying it in a tankbag instead of on your back - I tend to find after a long day even a couple of litres on your back is, literally, a pain. Can aslo then buy one without the tankbag and protect/insulate it with bubble wrap and gaffer tape. Saw one the other day which came as part of a tankbag and the drinks tube was on a sort of retractable bungee, but don't know the make?