Whoa! "repelling gear" - Whatever might that be, precisely? One conjures up visions of AK-47s, razor wire, stink bombs, land mines, really bad body odor. The possibilities are vast.

Perhaps the brochure means to indicate "rappelling gear" - the ropes and devices used to descend steep places. If so, mere equipment used only for rappelling is not optimum. You want the sort of stuff that will allow you to ascend, as well as descend, and travel safely with deliberate speed through tricky terrain. That would be better for many survival situations.