I was thrilled to find out that Patagonia now makes rain covers for their backpacks. I had a North Face one for my 32L Patagonia pack for years and when it gave out, I bought a replacement. The quality of the North Face replacement was miserable. So I was thrilled to find Patagonia now made their own. It seems, though, that ones pack must be full f... Read Moreor it to fit. I can’t get the toggle to tighten to fit when the pack is less than full. But it does its job well and I am pleased to have it.