The Avy Gear pocket is designed to allow use /access of the crampon patch and ice tool carrier. It has adjustable attachment straps that allow it to compress other gear: snowshoes, foam pads, ropes, etc.
the four short straps thread through the tri glide buckles on your compression straps:
be sure to double back the buckle like on a climbing harness.
the strap can be shortened by either sliding the tri glide buckle towards the harness side of the pack and/or threading all the buckle web through the tri glide.
then the male half of the buckle on the pocket just clips in.