In reply to jfefleming:
Aguille Alpine Equipment bags are excellent, made in the UK, and can be customised if you drop them an email. I use a Zephyr (which feels like a generous 45L) a lot, for anything from winter climbing where it swallows all my kit super easily even when the weather is crap at the top, to backpacking trips where I’m carrying a weeks worth of food, to hauling tent and climbing kit up a mountain to base myself there for a few days. It’s comfy, light, and I don’t see if breaking any time soon. It’s also amazingly low fafd, buckles are big and easy to operate with gloves on and it doesn’t have any annoying buckles.
Some people don’t like the classic style ice axe fabric loops, but I think they actually work much better than the toggle thing that most newer style bags have. The toggle things stretch out over time and stop holding the ice axe so well, and not all bags allow you to tighten it easily. Also, depending on the ice axe, the toggle might be able to slip through the head again - this happened to me with a different bag in the alps this summer, and I kept having to use an alpine draw to secure it to the grab handle just in case it popped out which was such a pain.
It doesn’t have side pockets, I find this is not needed for winter stuff anyway, and in summer, I use the gossamer gear shoulder pouch thing to keep my water bottle accessible if I want.
In the past I’ve used a mutant a lot and it just feels faffy compared to the Aguille. The zephyr might be a bit big for you, but one of their smaller bags might be ideal.
Post edited at 08:46