Popsugar Fashion Celebrity Fashion Sienna Miller Zigzag Bikini in Italy 2018 Sienna Miller's Bikini Is So Devilishly Sexy, It Plays Psychedelic Tricks on Your Eyes 25 July 2018 by Sarah Wasilak First Published: 24 July 2018 View On One Page Photo 6 of 9 ADVERTISEMENT () Start Slideshow Share This Link Copy ← Use Arrow Keys → 6 Boohoo Zig Zag Triangle Bikini Boohoo Zig Zag Triangle Bikini (£14, originally £16) Boohoo Zig Zag Triangle Bikini £14 from boohoo.com Buy Now Previous Next Start Slideshow Celebrity FashionBikinisSummer FashionShoppingCelebrity Bikini PicturesGet The LookRainbowSwimsuitsCelebrity VacationsRay-Ban