Back It Up. A full coverage behind ensures all day comfort, leaving you feeling confident and co-ordinated. Co-ordinate. The Cotton Bikini Brief is easily paired with Calvin Kleins' range of bikini tops, bralettes and crops. When it comes to branding and global iconography, Calvin Klein is second to none. Their classic style of "keeping it simple" blends comfort, style and practicality, creating looks that pair beautifully with any form, whatever your identity. Co-ordinate your bikini or crop top to the satisfyingly comfortable One Cotton Bikini. Made to hug your body with a stretch cotton blend fabric, these under shorts feature a branded waistline, full rear coverage, and full cotton gusset. Branded Show your brand loyalty with the world famous Calvin Klein logo. The waistband branding on this piece repeats its logo all the way around.