This is my second pair of Flints. The last pair pinched my toes but I dealt with it. This time I ordered a half size bigger. Same problem. I tried thinner socks, different insoles. Nothing helps. I've been wearing them for a couple weeks so it's too late to return them. I know they are work boots but they're extremely heavy. This is maybe my 7th pair of Keen boots. I'm also tired of having to silicone the tread to keep it from separating. Cutting my losses. Just ordered a pair from a different company.