Bought these for my husband who works out and runs daily. They are very roomy, I ordered a medium and he could probably wear a small. He's about 5'9 and 155-160 lbs. The neck is quite wide, but he has broad shoulders, so it didn't look weird. While they're not your typical crew necks and I'm not sure they'll hold up well, for the price it's worth it. It's a super light fabric which he loves since we live in the south! I would recommend them and give them 4 stars but there is room for a few minor improvements.
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