... lycra spandex ,lining at front 95% nylon , 5% spandex , Anti-UV UPF50+, breathable and comfortable boys swimming suitmain fabric shell :83% nylon , 17% lycra spandex ... ,lining at front 95% nylon , 5% spandex , Anti-UV UPF50+, breathable ,and comfortablefront ... and bottomthe print details at front panelthe lycra and Anti-UV 50+ hangtag boys swim suit