ZOGGS. Mercury Sportsback Swimsuit features a wire-free integral bra supporting up to a G cup. The bust section is lined for modesty. The sports back draws straps away from the shoulders for greater freedom of movement. This swimsuit is quick drying and has exceptional colour and shape retention. - UPF 50+ sun protection. - Made from our 100% Chlorine Proof Aqualast fabric with a Lifetime Guarantee.