Swim top. Lined. Model is a standard XS and is wearing size XS. True to size. Underwire. Back clasp. Stretchy, swim jersey; quick-drying. Cold hand wash only. Polyester/Elastane. Made for sun-drenched escapes, the Morning Dew Underwire Bikini Top in Buttercup Yellow brings a romantic touch to your swim collection. Crafted from a stretchy, quick-drying swim jersey, this flattering style features supportive underwire for the perfect fit and shape. Finished with a secure back clasp for effortless wear. Style with the matching bottoms.