Boreas Lost Coast is a lightweight pack. Has rib-cage construction helps the pack maintain its structure while carrying a load, and the specially molded and perforated EVA Z-foam back panel increases airflow for mile-after-mile comfort. For extra storage, the 5-liter top lid has dual overlapping external zippered pockets with an internal mesh zippered pocket for organizing loose gear. Plus, the lid can be removed to allow for more minimalist backpacking. Finally, dual side compression straps keep your load secure, while hidden daisy chain rows enable exterior gear attachment and tuck away when not in use.