In ancient times the Olympics were a time when all nations – all Greek nations, anyway – would put away their differences and compete in almost every human activity, from poetry to the ferocious no-rules wrestling event called pankration. Being the very best that humans could be was seen as the best way to honour the gods of Olympus. Though we’ve dropped the poetry and the blood sports, people watching the swimming or volleyball events might wonder if we're on the way to bringing back the ancient tradition of competing in the nude. Revealing outfits – like those designed by Lululemon for the Canadian beach volleyball team – may be practical for those events, but they also shine a light on how dressing for sports can make us feel about ourselves. After all, it's hard to feel good about your own body when you've just spent an hour watching the most perfect physiques in the world nearly naked.