Come and see our amazing products. This fanny pack is made out of polyester waterproof material. The back is mesh with breathable design, quick drying and not stuffy. With a headphone jack. an adjustable elastic running belt. Customize your logo. The size of the fanny pack is 12.60"L x 4.33"H Pls confirm with us about the packing info, stock color and exact production time before placing your order.