From the Wonderbra of the '90s to today’s T-shirt bras, what we find sexy shifts with social changes. So what are women wearing under their clothes in 2015? Has the focus shifted from breasts to bums? Has Fifty Shades of Grey unleashed consumer kinkiness? What do women want from their bras and pants?

Athleisure may be a key player in Gen Y style, but it’s also relevant to what they're wearing under their leggings and hoodies. Ditching push-up bras in favour of sporty cuts and wireless bralettes, it seems comfortable is the new sexy for a generation that continues to challenge gender norms.

The rise of athleisure has prompted brands to make comfortable clothing that’s fashionable as well as functional. Santa Monica-based Lunya is now shaking up the sleepwear market in a similar manner, offering stylish pyjamas and loungewear that work to improve the wearer’s slumber.

Brands like Lululemon have changed how people view their clothing; they want it to withstand their hectic lifestyles while still looking good. But that doesn’t mean it has to be basic. By combining technical fabrics with high-end design, Kit and Ace wants to show that functionality can be luxurious.