Good-quality sports swimming costume for a size 16/18

[StandsOnGoldenSands]

Hi, I'm looking for recommendations. I need to replace my old swimming costume but can't find anything decent.

My old cossie is a racer-back, dark navy 'serious' swimsuit - for swimming in, not for general beachwear. I've had it for several years now and it's worn really well.

I want something similar (I'd buy exactly the same again if I could find it) but all the cossies I've looked at have really thin, cheap material OR they're not available in a large enough size.

I also wonder whether it might be better to get a costume with extra boob support - some kind of internal crop top.

I'm beflummoxed by the array of swimwear out there and after a depressing experience ordering what looked like the perfect costume (when it arrived it was so sheer I absolutely had to send it back, to save everyone else in the pool's blushes) I am feeling v frustrated.

Can anyone recommend a good swimming costume ?!

[marymcb]

I have two speedos, ordered directly from the speedo website, and find them perfect for swimming three times a week. I think their sizing is on the small side and tend to buy a size up but that would be my only complaint!

What brand is your current swimsuit, have you tried looking online for other suits by that brand?

[StandsOnGoldenSands]

Thanks for the recc. It's just a generic swimsuit I think, the label has worn off.
The swimsuit I ordered online was Speedo, didn't order direct from them though. It was just really thin, I didn't feel comfortable wearing it in the water. I need something a bit more robust