The River Station Rapid Pack is compact, and quick at everything. We have created a new system for attaching and detaching the pack that is unique to us. The throw bag attaches to the waist belt very quickly and securely. Secure enough for repeated class 5 whitewater swims without fear of losing your pack. It detaches easily when you need it. Stuffing 60' of rope is seriously easy with the wide mouth, chalk-bag style opening. Large front mesh panel makes rope dry fast. The waist belt itself is on quick release in the event you need to ditch the whole system. This waist throw bag is for advanced, class 4/5 whitewater guides who are always on the move and who need to set safety quickly.