Tsuchiya Kaban Manufacturing Diario Large Tote ¥86,900 - Brand: TSUCHIYA KABAN - Color: Brown On the back side (image 6), there is a darker area that has been there since purchase. It seems to be a characteristic of the original natural leather. Although it's in the men's category, it's unisex. No pets. No smokers. I purchased it and used it once to a nearby place (on a sunny day). #TsuchiyaKaban #LadiesTote #MensTote #DiarioTote #TsuchiyaKabanManufacturing