Arc’teryx nailed it with their new Aerios 18 pack, blending hiking and trail running expertise into a versatile option for fast-moving mountain activities.

Perfect for spring through autumn adventures, the 18L size is also great for winter running. It has ample room for whatever gear you're taking with you. For day hikes, it fits a hardshell, insulation layers, gloves, emergency gear, and a flask, with extra space in the side pockets. It’s ideal for daily adventures and doesn’t need anything bigger.