Kahtoola KTS Tote Sack
Keep the points out of your back.
The last thing that should stab you in the back should be your crampons—literally. Kahtoola made the KTS Tote Sack with tough PVC-backed polyester with a breathable mesh bottom for drying purposes. The KTS Tote can also carry your water bottle, phone, camera, or GPS so you can stay organized on the trail.