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I’ve attached further examples of all the times I’ve lived my best life whilst rocking a cossie.

But did we really need to see her cossie in the trailer?

Other than that you'll need a cossie or some Speedos.

Having swum 1500m in the Serpentine, cycled 43km round Hyde Park in a wet cossie and run till she dropped for 10km, she had been denied a share of gold by what seemed like a dodgy art critic's appraisal of that photo-finish.

If you're a complete beginner then, after picking up goggles and a cossie, you might want to invest in lessons.