Main material: Polyester. the ring is plastic.
Features: open back o ring design, fahionable and comfortable
It has a good elasticity
Size: One Size. waist: 34-56cm(13.3-22in) diameter of the pouch: 5cm( 1.9in)
If you have any question(color, size,etc) about the item after u recevied it, please do feel free to contact us