I bought the black 32l version, large. I'm 1m 87cm tall and the backpack fits great. I put a 2,5l kamelbag in it and it works fine. However, if you don't blow back some air in the hose after drinking, it will easily get frozen (midwinter Eur. Alpes).
Solid materials and plenty of space for long full day trips. Easy to fix the skis.
One major drawback: I used it together with my light blue ski jacket for a week. The vacation was great but my jacket was ruined. The backside of the jacket turned into a mess with large dark grey spots.
Compliments to the gear experts and help desk on the chat. Excellent.
BE CAREFUL not to combine this backpack with ski jackets in very light colors.