Well, quite a few. What you聮re after is simply a large, comfortable backpack, one that can carry a load well and that stays close to your body for balance.
The Flash 65The decision largely depends on your budget. If it聮s a bit tight, 聮s Flash 65 packs an amazing amount of features into a $149 pack. It聮s the size you want, has pre-curved hip belt and shoulder straps for a good fit, and can be stripped down to a “light” configuration if you聮re trying to save pounds (maybe on a side trip). Two aluminum stays and a plastic framesheet help distribute the load. And it has lots of places for hydration bladders, gloves, wet clothes, and the like. Pretty impressive.
Next up the ladder, the Baltoro 70 ($289) is a little larger and has features such as a sleeping bag compartment. Gregory is well-known for the great suspensions in its packs, and it would carry beautifully while you聮re skiing. 聮s Aether 70 ($259) is in a similar price range, same size, and similar packing configuration. If this is your sweet spot, maybe try on both to see what fits best. I聮ve been wearing Osprey packs the past few years and like them very much. But Gregory聮s packs always have been good to me, as well.
Highest end, 聮s Bora 80 ($375) is a little larger still (but not too big聴on a long trip you聮ll have a largish load). Beautiful design, top- and side-loading, great packing features for organizing gear, and lots more. And very tough. Arc聮Teryx聮s packs are works of art, the construction is so good.
So there you go. A pack for every budget.