*The material/fabric is different for each color number. 15-BLACK Nylon 16-BALLISTIC BLACK Polyester Ballistic The SL backpack is a speak most backpack that "doesn't say much" on the outside. Inside, there is a mesh three-dimensional pocket that can store thin jackets and light clothing, Sleeves made of materials that are resistant to damage to PCs and tablets are placed. In addition, there is a hole for the battery cable in the side pocket to make it easier to charge the smartphone. It is a backpack full of functions that you can't tell from the outside. - Built-in daypack-type rain cover at the bottom of the main body (removable) *It is not completely waterproof. ●Sleeve for PC and tablet that can be used up to 18 inches in size (using a flexible lining that is not easy to scratch) ●Mesh three-dimensional pocket that can store light clothing ● Side pocket for charging your smartphone (battery/cable not included.) ） ●Side drink holder - Back belt for carry-on ●Non-slip zipper pull for easy opening and closing ●The shoulder belt has a D-ring for accessories and key attachments ● Number of compartments: 3 ●Pocket quantity: Outside 4/ Inside 6 [About NoiR selling price] We ask for your cooperation in selling at the price (tax included) set by our company. In addition, we refrain from coupons for products. There is no problem with coupons for the entire shop. Thank you for your understanding and understanding.