Fjallraven says about the High Coast Foldsack 24
Ready to play – High Coast Foldsack is a light, versatile daypack in recycled nylon. A fold-over top closure allows you to expand the volume of the main compartment, and small items can be kept easily accessible in the spacious front pocket. Comfortable to carry with lightly padded shoulder straps and perfect for daytrips and travelling. The seams are not taped and the zipper is not water resistant, but the main fabric itself is waterproof, so the pack offers good protection from the rain.