As a snowboarder I sometimes find myself in situations where poles would come in handy, like traversing sidecountry or catwalks. I'd like something telescopic that shrinks down small enough to fit in a pack, or at least if I have to keep it outside the pack it doesn't get in the way. It needs to have strong locks when extended so it doesn't collapse on me when I'm trying to push off. And of course if it wasn't too expensive that would be nice. Any suggestions?