Wow! Practical, Sturdy & Water-Resistant ‘Roll-Top’ Backpack Rucksack Made From RPET Polyester (Made From Recycled Pet Bottles). the Backpack Rucksack has a Large Inner Compartment with a Special Laptop Compartment (Up to 15.4”). Zipper Pocket on the Front with a Reflective Highlight Below It (Improving Visibility in the Dark). with 2 Side Pockets, Foam Back & Padded, Adjustable Shoulder Straps for Increased Wearing Comfort, Carrying Strap & Handy Roll Closure with Click System at the Top. the Perfect Bag with a Minimal Ecological Footprint, for Daily Use. Capacity Approx. 20 Litres. Minimum Quantities Apply.