Ray-JrMALL MR.Jiang Back Waist Elastic Brace Support Wrap Strap Belt Band Sports Adjustable Comfortable Black Open design, adjustable. Adopt velcro and OK cloth. Soft mesh cloth edge, durable. Dimension: 95 x 9 cm / 37.4" x 3.45" ( stretchy ). Material: 65% synthetic rubber + 30% polyester + 5% nylon.