NotSpaghetti
I use M&S ones.
Several colours and certainly (up to last year) two thicknesses.
I like the thinner ones best.
I can't recommend M and S Heatgen tops enough!
I have been buying them for 8 years.
There are the thin ones and the slightly thicker ones.
Thin one comes in at about £12.50 and the slightly thicker ones £16.50.
You will NOT sweat in them, I often layer one over the other.
boat neck, or a bob or two more, polo neck. Some cheerful red ones in atm too. Very wearable as a "top" tho your bulges will show. I recommend one size bigger than usual - ie I am a 10 but buy a 12, and if I wanted to be gentle on the bulges would get a 14.