This Heavy duty mesh backpack is great for use on boats. With the PVC coated mesh it is durable and will serve the diver well. The drawstring features rustproof, brass grommets. The ripstop exterior pocket comes with an internal key clip. YKK Delrin zipper with bronze pull. Heavy duty side handle. Exterior pocket ideal for mask and defog. Interior pocket runs full length of bag. Overall Dimensions: 30" x 14.5" diameter.