The AK37 is a compact climbing sac for mountaineering and alpine rock routes. A traditional top-loader, it has quickly gained recognition as an excellent all-round sac, particularly on big one-day technical routes. Uniquely for a sac this size, it has a frame making it comfortable to carry even when laden with 10 kg of ropes and hardware.

Side compression straps - quick and easy to fit or remove

* Oversized back haul loop - easy to grab and clip

* External and internal lid pockets - with taped seams for water-resistance

* 40mm webbing waistbelt with low-profile hip-fins

* 4mm Rivory-Joanny drawcords - can be used for emergency rap anchors

* Internal sleeve for hydration bladder with an oversized port for insulated tubes

* Two ice-axe holders

* Stretch wand pockets

Sizes:

1: Back length 17.5"

2: Back Length 19.5"

3: Back Length 21.5"