Maru Vault Back Swimming Costume Ladies. Maru Vault Back Swimming Costume LadiesJump in the pool with this Maru Vault Back Swimming Costume, made with an all over bright pattern for a stylish look. The vault back and scooped neck allow for a comfortable, long lasting fit and flatlock seams are built to reduce irritation. Maru branding sits to the front to finish the look.> Swimming costume> All over bright pattern> Vault back> Scooped neck> Flatlock seams> 100% chlorine resistant> UPF 50+> Breathable> Excellent shape retention> Maru branding