C-Mart L0050-05 is made from nylon material, durable, unique design, easy to use C-Mart L0050-05 is made from special fiber material that is resistant to punctures and damage by sharp objects and meticulous seams to help the bag not tear or unravel, extremely sturdy and durable. C-Mart L0050-05 is designed in a very scientific way so you can arrange and take out tools easily.