Mesh material for good breathability, a back support belt with adjustable straps. - Brand: ZAMST - Size: M - Color: Black - Features: Mesh material, adjustable straps Thank you for viewing. I've used it a few times, but it's in good condition! There are a few loose threads, but it's perfectly usable! Please consider purchasing if you understand that it is a used item! There is no box, so it will be shipped without one.