Big & tall swim suits

[midlifeswimmer]

Plain black, but it's a 44":

https://www.allensswimwear.co.uk/are...e-2a25455.html

If you can fit a 42" there's a fine selection of Speedo briefs in 42 from the UK, for instance:

https://www.perfectdayze.com/speedo-...0-114171-p.asp

The 7cm Endurance brief is a UK classic. Not very stretchy, runs very true to size.
Measure your waist 4 finger widths below your navel, that's your Speedo suit size.

I've had happy dealings with Perfect Dayze via eBay and their online shop.