The material is strong, I think that it is a good product because it is firmly sewn. I like it because there are lots of pockets. Since the pocket on the whole surface is small, the cell phone is incredibly tight. For cigarettes, you can enter if you are an iPhone 5s smartphone. There is no elasticity in the material at all, there is almost no gore, so the overall storage capacity is less. Notepad, ballpoint pen, magic, cutter, mobile, smartphone, cigarette ... It is recommended for those who are sufficient in this degree. There is no tool holder, it is perfect for light work.