Fewer and fewer backpacks have traditional, spacious side pockets. This development pleases some but displeases others. Fjällräven has addressed this issue for the Kajka 35 and Singi backpacks by making proper side pockets available as an accessory for those who prefer them. The four-liter pocket can hold more than just a large water bottlefor example, if you carry a small first aid kit as recommended, the side pocket serves as a natural and convenient place for it. Made from durable Vinylon fabric, the additional pocket fits the Kajka 35 and Singi series backpacks perfectly. The additional images of the green color option show different usage possibilities. An extra pocket like this also inspires the imagination of a DIY enthusiast: think of the countless applications for a separate pocket!