For light day hikes, the Mountainsmith Drift Lumbar Pack provides a place to stash snacks, water, and a layer. Tuck away the waist belt and use the shoulder strap for shoulder bag conversion.Zippered main compartment with organizer sleeve. Front panel expansion pocket. Tuck-away airflow waistbelt. Patented Delta Compression System load adjustment. Removable shoulder strap. Side bottle pockets (fit up to 22 oz). Headphone port. Bright yellow lining promotes interior visibility. Waistbelt fits 28-48 in. Capacity: Up to 12 lbs.