Comfneat Men's 6-Pack Invisible Enlarged Collar Undershirts 100% Cotton Comfy Crew Neck T-Shirts

These are great and I buy them often. Don't fuss too much about the size, I tried 3 different sizes (S, M, L) and they all fit well and are comfortable, just depends on the type of fit you're after.

I'm tall (6'3") and slim. I bought medium rather than my usual large size and they fit perfectly. Definitely long enough to tuck in to your trousers or underpants nicely. I've knocked one star off for the printed labelling which many others seem to like. Unfortunately, this stops you from washing them on a hot wash of 60 or 95 degrees C. Which seems crazy to me... why would you not want to wash white cottons on a hot wash with your white shirts (which need the temp to get the collars and cuffs clean)? To have to use a colder wash just because of the printed labels is barking mad to my mind and yes... the writing does come off at higher temperatures... ask me how I know! Overall, I'd still buy them again, but won't need to as I retire soon and won't need to wear a white vest under a work shirt ever again.

Nice fit

My son is very comfortable wearing this ! Easy to wash ! Good quality ! Good value for the money !

Fairly cheap for the price, material is okay but I found them to be a bit big and baggy for me.

Hubby loves them they are warm, very good material, and most importantly very long so that they don’t come out of the pants, they look good and are worth the money, material is thick enough to be comfy and warm at the same time

I'm 5ft 8 and about 11st. Medium were way too long and too big. These were supposed to be fitted I thought - they aren't.

Good product. Dad thought neck a little tight though he does use them to sleep in