I've had these shirts for 6 years now. Collars are high and tight, sewn VERY well. Pulling the shirt over your head after several washes stretches just enough for those who don't like a tight fit. It stays high and just not as tight as when new. Not only the collar is well made, but the whole shirt. It's not a flimsy shirt like, say, Haynes or anything. Also not classified as tank tops but definitely can be used as one. The shirt will shrink a bit over time even if we use a clothesline instead of a dryer. Ironed, they look almost new. We recently started a cleaning company and we are VERY dirty, throwing rubbish, breaking pallets, cleaning between diesel truck trailers, cutting weeds, whatever, and I use that for all the staff. They are durable and can withstand impact. I've never seen a t-shirt like this, the price matches the quality!