Calvin Klein Pride Swim Bikini Bottom, Rainbow Gradient/Black Features adjustable string ties on the Hips Gradient rainbow print with recycled nylon elastane blend and Tag logo at the rear Calvin Klein monogram branding with shiny metallic finish 83% Polyamide, 17% Elastane. Our Collection at Boxers and Briefs contain only the highest quality Calvin Klein Womens Swimwear.  One of the most popular ranges is the Calvin Klein Pride Swimwear collection. In this range we have a Rainbow Gradient/Black, Pride Swim Bikini Bottom which is available in multiple sizes including X-Small (Size 8), Small (Size 10), Medium (Size 12), Large (Size 14) & X-Large (Size 16).