Thank you for looking! ⭐️ We handle many new and unused items ◎ Free shipping and immediate purchase are welcome! ❣️ Please read our profile before considering! #mina's shop☆ [Size/Packaging] S (Bag): 20*14*H281 [Material] The surface of this lunch bag is made of 1.5mm thermal cotton canvas. Insulated aluminum molded cotton (cold/hot retention) lining. A stylish and simple, easy-to-use drawstring bag that keeps things warm. 1. This model is made of canvas and cotton fabric, with a fabric thickness of 280 grams. 2. The inside of this product is not needle cotton aluminum film (1.5mm thick), but not a single layer film (10 lines thick), and the thickness difference is 15 times. 3. The drawstring of this product is made of cotton material, while the drawstrings of other products have a surface coating. [Design/Capacity] Convenient design for daily carrying. Large opening design, easy to carry and set up, can be folded when not in use, lightweight and easy to carry wallet size. It fits perfectly even with a two-tiered bento box. Heat/Cold Retention: A reliable lunch bag. Large opening and easy-to-use drawstring. Not only can it be put in a bag, but it also has a stylish and simple design that is easy to hold in your hand. The inside is made of aluminum material with excellent heat and cold retention. It can be easily wiped clean if it gets dirty, making it very hygienic. The larger size is "firmly thick" and stands up well due to its thickness ◎ Thank you for looking! ♪