The simple sling design is about as basic as you can get. It is a length of webbing with a loop on both ends securely stitched with two box X patterns. This variation is in patterned polyester webbing which is sturdy and absorbs a little bit of shock. This design is a reoccurring item in our custom department, for purposes ranging from a safety barrier to hanging hammocks. It was only natural for us to add this as a product.