This backpack is made of 300D Oxford cloth material, which is wear-resistant, scratch-resistant, and water-resistant. Also available in matching and coordinating pieces. Fabric: 300D Oxford cloth (100% polyester) Size:49*32*26cm(h*l*w) Please allow 2-4 weeks for delivery Care Instruction: Gently brush off surface dust and stains with a soft-bristled brush or clean cloth, or gently wipe off stains with warm water and neutral detergent. Do not use bleach-containing detergents, and avoid exposure to direct sunlight. Notice: a variety of factors may cause slight differences between the actual product and the mock-up, including but not limited to colors and precision of elements position. Size Guide Inch U Length 12.6 Width 10.2 Height 19.3 Centimeter U Length 32 Width 26 Height 49 The size chart is manually measured, the margin of error is 3cm