Twist-front sweetheart necklineSewn in, soft wire-free cups with Power Mesh bra frame & side boning for supportDouble keyhole back with G-hook closures with 3 adjustmentsAdjustable straps Solutions: UPF 50 Sun Protection82% 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 & dryersSizes 4-24Imported 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 through, and it blocks 98% of UV rays. Sunscreen use is still recommended when wearing our UPF 50 styles since no clothing can completely block out U