kun. There are many ways to attach crampons to this pack or carry crampons when going in to the mountains. The majority of folks I know put their crampons in some sort of protective pouch/crampon bag when they are not in use. Some of these crampon bags can be attached to the outside of the pack and many are simply carried inside the pack with your other gear. Other than that, you can fit them underneath the top pocket and secure them with a strap that is there or you can hang them off the side on the straps seen in the photo. I would suggest getting a crampon bag and using that instead of randomly strapping them to the side of your pack. They are more secure this way and you won't put holes in anything you don't want to. I hope this info helps!