I was going to send it in but went with a differant pack. The wax I'm sure would help but the zippers are shot now.I rub parafin wax on sticky zippers. But Badlands will fix for you if broke. Sent one off last year, fair old pack, fixed, for free, and back in two weeks or so. Might want to give that zipper a good jerk, oops, off it goes...