While we’re only now feeling the effects of a brash Sydney winter, we’re sure that many gym junkies are looking to perfect that summer rig for the upcoming seasons – and this new Kardashian lookbook just might serve as the perfect inspiration.

Fresh from their Ivy Park collaboration with Queen Bey, fashion giant Topshop has again tapped into some serious celebrity power – recruiting Kendall & Kylie Jenner for a new line of summer-ready looks. It’s the sisters’ first foray into swimwear, with bold and bright being the underlying motto of the mostly monotone pieces. Kylie also displays a bondage-inspired piece in metallic gold in vintage Kardashian fashion, while Kendall wears a one piece in rich royal blue.

See the sisters work their stuff below in the lookbook and two videos, while the line is set to hit Topshop stores in the States this week. Get those rigs ready: