Well, of you live in Northants, as I do, you are in a prime location
for t-shirts. Matalan does some, as does River Island, I think,
although they are on the skinny side. Milton Keynes also has a fair
few clothing outlets, as does the Outlet Village near Bicester.

Doesn't it get cold, going around in nowt but yer bra all the time,
though?

If you mean diving t-shirts, on the other hand, why not save your
pennies until the end of the month, go up to the Birmingham Dive Show
at the NEC and fork out for a few Seven Tenths threads which will be
on offer, no doubt, from their stand.

There you go, you see, a helpful reply on rec.scuba.

Even if it is from a limey...