Equip yourself for any situation with the NAR Chest Seal, trusted by Military, Police, Fire, EMS, and First Responders. Engineered to perform in extreme cold and heat, its transparent backing ensures easy placement. The chest seal's strong medical-grade hydrogel adhesive provides total occlusion, even with excessive blood, dirt, sand, hair, or heavy perspiration. Latex-free for minimal allergic reactions, and puncture-proof, this seal is designed to meet the rigorous demands faced in the field.