Features Enter your model number above to make sure this fits. P.when("RPPStripeRendered").execute(function(stripeData){ if(stripeData && stripeData.state){ switch(stripeData.state){ case "result-found": document.getElementById("replacementPartsFitmentBulletInner").innerHTML = "This fits your "+stripeData.item+"."; document.getElementById("replacementPartsFitmentBullet").className = ""; break; case "no-result": if(stripeData.showBullet && stripeData.showBullet !== "0"){ document.getElementById("replacementPartsFitmentBulletInner").innerHTML = "No information found for this part for "+stripeData.item+"."; document.getElementById("replacementPartsFitmentBullet").className = ""; } break; default: document.getElementById("replacementPartsFitmentBullet").className = ""; } } }); Main material: This backpack is made of 95% high density cotton canvas , it's very durable. Structure: A total of 4 pockets. 1 main zipper Pocket, 1 front zipped pocket and 2 inner pockets. Approx Dimensions: 13.3" L x 18.1" H x 7.1"W Capacity: 28L (Middle size fits up to 15.6" Laptop.) Adjustable padded shoulder straps to protect your shoulders, you can adjust it according to your height and comfort requirements. WindTook: It's an awesome backpack that you will receive many compliments from your Description Product Description About returns policy and our services 1. If you are not satisfied with our product or have ordered a wrong item. Please let us know first by sending message or e-mail. We will reply to you within 24 hours. 2. We promise to resolve all problems and mistakes for you immediately. 3. Please feel free to leave us a message if you have any questions. We will reply to you within 24 hours and offer you our best services. 4. If you are satisfied with our products, please leave us your valuable feedback or product review. We appreciate your support. 5. Before you leave negative feedback, please contact us first about your problem and we will reply to you ASAP to find out the best way to resolve it. 6. Please check the sizes before you confirm an order. We will always be here to help you. Package 1 X Backpack