This bag is constructed out of 12oz duracord on the outside ,the lining is soft cotton material,the padding is 300gm dacron. We have put a no 10 heavy duty zippa on the end of the bag for easy access,it also has a 1in wide webbing handle. It is design to protect your coil and shaft from dust, dirt, rain, scuffing .Its constructed out of quality material and has been doubled stitched for extra strength.