I bought a big one and the big one fits. I bought it because the last one was exactly the same, a year later the zipper on it broke. I would have bought a different type but this was the only jacket that offered the combination of what I was looking for. Something great for chilly mornings and evenings in fall and spring, and waterproof to boot. I found many waterproof-only jackets, non-warmer jackets or warmer-only jackets for the transitional seasons, but not a single waterproof jacket and vice versa.
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