● surface layer_ Cotton ● inner layer_ Cotton https://i.pinimg.com/originals/55/ff/cf/55ffcf43b25755992b320560982a10cd.png You can additional purchase inner layer.https://www.pinkoi.com/product/cMdXvCGd ✦ Bag Size ✦ Small clasp frame➝W 19 * H 14 * D 5 cm ⇢Small bag has 1 inner pockets. Medium clasp frame➝W 19 * H 17 * D 5 cm ⇢ Medium bag has 1 inner pockets. Long clasp frame➝W 24 * H 16 * D 8 cm ⇢ Long bag has 3 inner pockets. Big clasp frame➝W 24 * H 20 * D 8 cm ⇢Big bag has 3 inner pockets. Backpack clasp frame➝W 24 * H 25 * D 9 cm ⇢ Backpack bag has 3-4 inner pockets. https://i.pinimg.com/originals/62/30/0e/62300e07888206c7cb17cd26c6253de9.jpg https://i.pinimg.com/originals/e3/79/3f/e3793fd0d53085b2b3e17615bd873879.png https://i.pinimg.com/originals/d1/a6/8d/d1a68d6d364a0024d75d879e2c3b5aee.png This product is handmade, and so each one cannot be 100% identical. This product is handmade, and so may not look exactly the same as the photo. This product is handmade, and so slight variations in size are to be expected. This is a customized product, which requires 5 – 7 working days with holidays excluded. This product will be shipped by regular air parcel. The shipping time depends on the logistics companies. Therefore, an exact date cannot be given. Please allow for some variation in color between different devices and screens. Actual colors may vary. We do not accept returns/exchanges for customized products. If you have any questions, please send us a Pinkoi message.