Features of the Simms Challenger Mesh Duffel Bag Rugged and durable 600D recycled polyester base with Highly breathable polyester mesh Upper Two-way large gauge zipper accesses main compartment Single side accessory pocket for key essentials Padded and removable shoulder strap Fabric Details 600D Polyester Fabric w/DWR Coating and backside PU Coating 200D Polyester Liner