High quality waterproof material with soft feel, not easy to fade, wrinkle resistance and wear resistance. Cotton and linen lining, fresh and breathable, soft, comfortable and removable for cleaning. Eco-friendly thickening aluminum foil makes the food fresh for hours and made of BPA free materials, it's non-toxic and safe for your food. The overall plasticity is round and full with stronger load-bearing capacity and higher quality, firm and durable.