One thing about Kim Kardashian? She's the queen of iconic shapewear and undies - in no small part thanks to her clothing business SKIMS, which has been celebrated across the industry for its inclusive and quality approach. But she's also a pretty big devotee to swimwear, particularly bikinis of the "micro" persuasion.

Don't believe us? Here's a quick recap. There's been a see-through bikini (who knew they even made those?) modelled back in December, an incredibly teensy, crystal-embellished bikini back in November, a space age silver bikini worn in July and even a 2013-worthy set that hopped on the 2010s revival.

And it's another day, another swimwear slay for Kim. You may be aware that they entrepreneur and reality tv star has most recently been enjoying a ski holiday and has been racing down the slopes in full-on winter bunny, Aspen chic attire.

However, she has made time to keep up her dedication to tiny swimwear and has posted a carousel of images with her and a friend posing in a sauna. The caption? "It’s not always rainbows and butterflies…sometimes it’s rainbows and saunas".

We'd like to draw your attention to the second pic in the Instagram post, where Kim takes a sec to show off her black, halter-neck string bikini top. It's a look, that's for sure, and the star has kept it lowkey (understandably, given she's in a sauna) by avoiding any additional accessories and keeping her hair pulled back.