<b>Capacity</b><br> <br> This bag has a whopping 40L total capacity and two large pockets that have mesh pouches for bottles; the smaller compartment inside the bag can contain books, laptop, tablet, phone, clothing, just to mention but a few.<br> This is an ideal kind of bag for a more beautiful traveling,hiking, camping, riding, running and climbing experience.<br> This bag features a sternum strap with emergency whistle buckle. This bag will help alleviate fatigue as it is designed to perfectly fit your back for a more convenient carrying.<br> It features D-shaped hooks at the either sides of straps for attaching smaller items.<br> <br> <b>Product Parameter </b><br> Capacity: 40L (2,136 cubic inch)<br> Outside fabric: spilling and anti-tear nylon <br> Inner fabric: Dacron <br> Product weight: 1.45 pound (0.65 kilograms)<br> Product size: 20.5 x 11.8 x 6.3” (52 x 30 x 16cm)<br> About returns policy and our services<br> 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.<br> <br> <b>Washing & Maintenance Instruction</b><br> 1. Water-resistant coating fabric. Please don't wash with liquid detergent or bleach.<br> 2. Clean with a wet cloth if necessary.<br> 3. Air dry.<br> 4. Please do not iron it.<br> <br> <b>Package</b><br> 1*Mountaintop Backpack