The courier backpack impresses above all with its well-thought-out interior organization of the storage space and clever closure system. In addition to the 6 inner compartments for things like your laptop, tablet and other everyday essentials, the new closure system lets you access these items without any problems. You can also attach the Case M (orange) to the outside of the backpack for more storage space or your bicycle helmet. The Jae details make you stand out even in the dark, so you can always get home safely. Now about the material. This one is made from recycled post-industrial nylon and is just amazing. It makes this product, like the rest of the collection, an absolutely sustainable product. Of course, don't forget our inner lining made from recycled PET.