Handmade 350ml bottle cover. Pouch juice can also be used. The lining is made of aluminum. See photo 4. Photo 1: 350ml PET bottle Photo 2: 300ml pouch juice (I'm not sure if it fits everything) Photos 5 show the PET bottle and pouch juice inside. It has a tag, so you can attach your own shoulder strap, etc. Handmade shoulder straps are also available. Please consider them together. When not in use, the gusset can be folded for compact storage. See photo 3. 1 piece is 500 yen. 50 yen discount for combined shipping. Price may vary depending on the fabric. This is just a hobby of a housewife, so please forgive any imperfections. Please purchase from a store or a professional. Reichin Handmade Shinkansen, train, car, steam locomotive, vehicles, bus, Komachi, Hayabusa, Doctor Yellow, working cars, construction vehicles, emergency vehicles, fire engine, ambulance, police car, dinosaur, animal, insect, beetle, stag beetle, animal, camouflage, stars, space, planets, soccer, fish, aquarium, whale, dolphin, whale shark, turtle, unicorn, Pegasus, strawberry, fruit sandwich, candy, cake, cupcake, shortcake, chocolate, macaron, ice cream, ribbon, polka dots, water drops, stripes, bear, rabbit, merry-go-round, dress, sunflower, watermelon #Reichin Handmade