I used this item a few times after purchasing it from a recycle shop, but the capacity was too large for my needs, so I am reluctantly selling it. This product is made of wrinkle-resistant material, so I will ship it in a compact form. There is some yellowing in places, but I think it can be removed by washing. The official online shop states that it can be washed when selling the product. The following is a quote from the official online shop: ● Durable and abrasion-resistant nylon fabric ● Natural texture with a unique marble pattern and unevenness ● Ergonomic design that fits the back ● Machine washable ● 8 functional smart pockets (inside) ● 6 outer pockets that can be used for different purposes ● Non-slip & cushion-integrated straps to reduce shoulder strain ● Water-repellent treatment that resists dirt and rain 【Textured Nylon】 Made of highly durable and abrasion-resistant nylon fabric. Lightweight and with a textured surface, the textured nylon has a rough, crisp feel. The unique marble pattern of the fabric gives a refined impression even with colorful colors. It is a versatile fabric that suits people of all ages. It is resistant to water and dirt and is easy to care for. It can be machine washed. Thanks to the water-repellent treatment, you can use it with peace of mind even in sudden rain. 【Big Bag】 The largest in the series! A large-capacity 20-liter model. In addition to the spacious main space, it comes with 18 storage spaces of various sizes and a key hook, and a mini pouch with a strap for organizing your luggage in detail. Recommended for everyday use, as well as for travel and as a mother's bag.