What's the cloth called that you generally wear inside of other cloth that has a long neck to fold?

Question

... multiple times and it's actually stretchy so it generally fits/cover your body and also has long arms?

It's a tshirt version of a long neck sweater.


Thanks!

Answer 1

It is called a turtle neck shirt.

Answer 2

In Australia it's called a skivvy! (As made famous worldwide by the kid's entertainers The Wiggles).