The Jääkäri S’s bag has been designed to be slim but still spacious enough to hold the necessary supplies for a day trip. The opening of the bag is closed with a folding flap which enables overpacking as well. When closed normally, the bag’s opening folds approximately 10 centimetres over the front together with the flap. This ensures that packed items stay inside the bag securely and tightly and it also helps keep water out. The folding opening and lengthy straps enable considerable overpacking. The main bag adapts in a stepless manner and has a capacity of 20–25 litres.
There is a zipped pocket inside the flap for small items and valuables, which can be used to store items such as your toothbrush and passport (dimensions: 15 x 25 cm). The bag’s opening has been reinforced with ethylene support pads that ensure you won’t waste time getting the bag open and items out.
Inside the bag, there is a separate pocket (dimensions approx. 23x37cm) for a hydration bladder or supplies that need to be kept separate. This pocket will easily hold, for example, a contemporary 13.3-inch laptop or any smaller pads and gadgets. The pocket’s opening is closed with an elastic band. This ensures that items stay in and don’t move around when you do. A hanging loop found in the upper part of the pocket can hold items such as a hydration bladder safely and securely.
On each side of the bag protected under a flap there are outlets for the tubes of a hydration bladder or, for example, a cord or aerial.
Compression straps found on the backpack’s sides can be used to tighten the bag into a compact shape even when it is not full. The same straps can also be used jointly with additional straps for attaching long items to the bag.