The North American Rescue Hyfin Chest Seal is a circumferential occlusive dressing for use in the management of casualties with penetrating chest wounds. The Hyfin uses the latest specialized adhesive technology for a superior seal in the most adverse of conditions. The Hyfin chest seal is supplied in a rugged, easy to open package that allows for quick and effective application in extreme environments. HyFin chest seals are widely used by the military, police, paramedics and other first responders. They are a great addition to any IFAK, office, vehicle or home emergency kit.We carry the HyFin chest seals both in single and twin packs.