Sparrow 20 IIDescription The smaller brother to the Sparrow 30 a simple yet sturdy 20L backpack with a well conceived design made with original materials. Sparrow 20 is a small sized rucksack that fits perfectly into everyday carry roles and short time tactical uses. Not only limited to military roles, but Sparrow can also be often spotted on hiking trails and in the cities. Air Comfort System guarantees comfort and efficient air ventilation while still