You'll love mixing and matching our Triple String Swim Brief with our bikini tops (or any swim top) to create the two piece swimsuit of your dreams. Fully lined brief with triple-string sides and full coverage bottom. Like all Swimsuits For All styles, this brief is Designed to fit and flatter your figure like nothing else. Coverage: full bottom coverageFully lined, triple string briefRise: low 82% Nylon / 18% SpandexFabric provides UPF 50 UV protection. .Hand wash with mild soap. Roll suit in towel & squeeze out excess water. Dry flat; avoid washers & dryers. Close Back Details “UPF” stands for Ultraviolet Protection Factor and it measures the Ultraviolet radiation or “UV” protection from the sun provided by a fabric. (Similar to the SPF rating system used for sunscreens.) Our Swimsuits For All styles with UV sun protection have a rating of UPF 50 (the highest possible rating) which means only 1/50th of the sun's UV rays can pass