PQ Basic Ruched Bikini Bottom in Black. - size S (also in L) PQ Basic Ruched Bikini Bottom in Black. - size S (also in L) 84% polyamide 16% elastane. Hand wash cold. Stretch fit. Ruched back detail. PILY-WX338. MID 211T. PQ swim is a cabana chic swim and resort wear line inspired by women who want to feel confident in what they wear. PQ encompasses everything a woman needs for a stylish getaway from sun up to sun down, offering supportive fits and flattering cuts. Our Alluring designs are inspired by our life's travel...always within reach of an exotic beach and the sun's glowing heat.