The messenger bag has a slim profile and an adjustable padded shoulder strap the main compartment has a large flap over lid for convenient access to equipment without having to remove the bag from your shoulder there is a zippered pocket in the lid inner mesh pockets and adjustable padded dividers that can be removed in one piece so you can also use this as an ordinary bag outer material waterproof tarpaulin plastic coated nylon polyester mix seamless high frequency weldin