Klättermusen - Tjalve 2.0 Backpack 10L - RavenOverview Tjalve Backpack is a lightweight daypack built for trail running and and other fast paced activities where you only carry the essentials. Close to body suspension and breathable contact points keep the pack stable, cool and comfortable when the pace rises, while durable materials provide dependable protection for your gear. Elastic external storage lets you stash an extra layer within easy reach. Designed for speed, simplicity, and carrying