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Didn't think a simple girdle could make this much difference, but my sleeping bag now takes up half the space in my pack. It works with the stuff sack I already had, no fuss.

My quilt was taking up half my pack until I cinched it down with this thing—now it’s a fraction of the size and I’ve got room for my camp chair. It works with any stuff sack I’ve thrown at it, and the compression is seriously impressive for how little weight it adds.

I've been using it to compress my spare clothes and a puffy jacket for weekend trips, and the cinch-down really does shrink the bundle noticeably. Makes a huge difference when you're trying to squeeze everything into a smaller pack without buying new sacks.