adidas Backpack, B4 Size, 15.6-inch PC Storage Original Price: ¥10,450 [Outer Material] 600dn Recycled Polyester Oxford TPU Processing [Closure Type] Zipper [Water Resistance Level] Non-waterproof [Size] H52 x W32 x D21cm [Capacity] 31L, B4 size storage, 15.6-inch PC storage This size is very easy to use for those who carry a lot of luggage or travel for short periods. I have washed it quickly, but there are some scratches and stains here and there, so please be aware of this.