This bag is made of LDPE (Low Density Polyethylene). This material is effective in cushioning and avoiding collision, so it is used for packaging fragile or non-impact resistant items. We can apply single-layer or double-layer air bubble material to the bag according to customer’s product. The bag can also be used with different colour Ziplock or Ziplock with sliders, so as to effectively lock the items and prevent falling. In addition, the above materials can be printed in multiple colours.