I have a pair of Aquux Lifeguard swim brief/bikini.
They were a tight fit when I bought them but I have grown since then and they haven't.
Similar to these but in red, white and orange with Aqux written on the front and +Guard written on the back:
https://aqux.ocnk.net/product/4281
If anyone about 34" waist in SE England would like to model them .....
Actually the colour pattern was more like this:
https://aqux.ocnk.net/product/4185