Add Yahoo as a preferred source to see more of our stories on Google. One journalist told me the only thing he felt was missing was a two-way zipper – those zippers that you can unzip from the bottom ...

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Zippers are a part of many pieces of gear. From our jackets to our tents and backpacks, having a functional zipper can keep us warm, dry, and all of our gear contained. What happens when that zipper ...