Bikini top by Matthew Williamson, Stretch-swim fabric, Halter neck, Underwire support, Floral-print design, Clasp closure, Machine wash, 88% Polyamide, 12% Elastane. The master of print and embellishment, London-based designer Matthew Williamson translates his love of travel into the brand�s signature laid-back, boho style. The result is a collection of pretty printed dresses, oversized sunglasses, beaded kaftans and cut-out swimsuits.