Fjallraven Rucksack No.21 Backpack

The Fjallraven Rucksack No. 21 is a great multipurpose backpack that can be used for anything from a daily commuter bag to an outdoor hiking daypack.

Those who want a daily commuter backpack with a vintage-inspired heritage design will love the No. 21’s functional carry features such as a 15-inch laptop sleeve and outside pockets for water bottles and small items. The main compartment is large enough to hold a few books, notebooks and personal everyday items.

But it wouldn’t be a Fjallraven backpack without the ability to use the backpack outdoors. Unlike modern technical backpacks, the Rucksack No. 21 keeps things simple with a rucksack design that allows the main compartment to extend up instead of out. Add in Fjallraven’s G-1000 HeavyDuty fabric into the mix and you have a weather-resistant and tough bag that can handle casual adventures.

The Fjallraven Rucksack No. 21 is available in 3 different sizes; Small (15L), Medium (20L) and Large (30L). The specs and photos on this page are of the medium sized Fjallraven Rucksack No. 21.

What we like

  • Good multipurpose backpack; from school to outdoor carry

  • Fjallraven’s G-1000 HeavyDuty fabric is tough, durable and weather resistant

  • Cool vintage rucksack design available in a ton of different colors

What we don’t like

  • Can’t fit too much in the medium size backpack, main compartment is deep but on the thinner side limiting what you can carry

  • On the pricier side considering the size and features


  • Dimensions: 17.32” H x 11” W x 5.1” D

  • Capacity: 20L

  • Weight: 2.11 lb

  • Material: G-1000® HeavyDuty: 65% polyester, 35% cotton

  • Laptop Compartment: Up to 15”

  • Top loading main compartment entry

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