I ordered a size up knowing they run small and it worked. The fit and fit you expect from a trail running shoe. They are NOT insulated and a good all round waterproof shoe. I haven't been able to submerge them to any depth of water (more than an inch or so), so I can't confirm they're actually waterproof. You CAN SEE the goretex lining on the inside of the shoe so I dare say they would be fine. It took about 5 full days to wear them for 2+ miles before they even broke so should be worn for a relatively long time.
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