The trail running or day hike pack of your dreams. Super lightweight, trim fit, hydration bladder compatible, plenty of room for snacks and low volume outerwear. AeroForm™ back panel allows for maximum air flow and comfort while the 3D molded framesheet ensures a solid support system. Bungee chords on the front of the pack allow for additional compression or expansion. The modular waist belt adjusts for a custom fit on the back to limit unwanted bounce while you’re out and about.