Fjallraven Ulvo 23 Backpack Mountain Blue One Size Size. Fjallraven's Bergshell fabric is water resistant enough to manage most situations - at the same time as 100percent recycled nylon makes green hearts beat a little faster. Simple to pack and just as suitable for light treks and travelling as for everyday commuting. Specifications for Fjallraven Ulvo 23 Backpack - Unisex: Manufacturer: Fjallraven Size: One Size Gender: Unisex Capacity: 23 liters Pack Volume: 23 liters Body Material: 400D 100percent Polyamide Condition: New Pack Loading: Top Features of Fjallraven Ulvo 23 Backpack Waterproof durable Bergshell fabric with 100percent recycled nylon Zippered main compartment with padded computer sleeve (up to 15') Large zippered front pocket and attachment loop for a bike lamp Side pockets in stretch fabric Package Contents: Fjallraven Ulvo 23 Backpack Fjallraven F23301-570: Ulvo 23 Backpack Mountain Blue One Size