GUARDNER BELT made of mesh material, offering comfortable support in a free size. - Model Name: GUARDNER BELT - Color: Black - Material: Mesh - Included: Instruction manual, card - Size: M size This is an authentic product. I used it a few times and then stored it. The box is size L, but the belt itself is size M. I initially bought size M, but it didn't fit my 88cm waist, so I repurchased size L. Please judge from the photos. No claims and no returns accepted. Shipping will be on the weekend. Thank you for looking.