It isn't every day Kendall Jenner shares a bikinigram [1], so you can be sure that when she does, she must really like what she's wearing. No surprise that she was digging this flirty yellow bikini with a high-leg and retro twist — she and Kylie designed it! The Kendall + Kylie Knot Front Bikini Top [2] ($78) and matching High-Rise Bottom [3] ($68) are both available at Revolve, and Kendall gives you a few solid tips for how to model the design: styled with a delicate gold pendant, holding a green apple, lifting your legs to show how they go on for miles, and taking some mirror selfies while you're at it. Read on to see a few different angles, then shop the exact two-piece along with similar looks for your swim drawer [4].