The Velocity name speaks for itself: Osprey's Tempest Velocity 30L Backpack packs speed-friendly features to the Tempest family for quicker ascents while peak bagging and spring ski touring. The harness fits like a running vest, and it's loaded with stretch pockets for stashing soft flasks and other on-the-move essentials. A lightweight back panel and flexible hip belt keep our load steady, even at top speeds. And best of all, Osprey's commitment to the environment ensures they use eco-friendly recycled fabrics and water-resistant tech without added PFAS.