Make sure to check out the full Mountaineering and Alpine Climbing Backpack Review to see how the Ice Pack compares to the competition.
It is extremely lightweight for its capacity, very comfortable, simple in design, and made from a Cuben Fiber/polyester hybrid fabric that's seam sealed, meaning it's 100% watertight- a unique feature among the packs tested. The fabric, although very light and extremely strong in terms of tear-strength, is more susceptible to abrasion than the average alpine pack tested here. For this reason we found that the Ice Pack is best used as an ice climbing or alpine snow/ice pack (as the name implies) rather than as an alpine rock pack. Previous editions of this pack had certain features that were lacking (the crampon attachment for example), but HMG has been refining the design, and the newest Ice Packs are fantastic.
NOTE: HMG has updated their pack line. The Ice Pack in this review is now one generation old. The Ice Pack now features a more abrasion resistant Cuben / Polyester hybrid fabric on the bottom and bottom "rand", and an improved crampon attachment. This should increase the overall durability of the pack. As soon as we get our hands on the new version we will post photos of the new bottom and see how it performs.
If you're looking for a go-to smaller pack, or a pack primarily for long alpine rock routes consider the CiloGear 30L WorkSack or CiloGear 30:30 WorkSack. If you need a pack for epic, multi-day technical endeavors in the world's greater ranges, check out the CiloGear 45L WorkSack.