Constructed of a flame resistant, breathable fabric, the MD3040 can be worn comfortably for extended periods of time and the lightweight vest design allows a full range of motion in the performance of duties.It is available in a number of colors (red, green, brown, white, purple, blue & yellow), denoting the wearer's onboard duties, as per the US Navy's identification requirements. The MD3040 meets the Naval Sea Systems Command (NAVSEA) CID for use on US Navy ships as flight deck life preservers/identifiers. Bright silver reflective tape is added to the shoulders and back for improved wearer visibility and an emergency light (not included) may be attached to the Velcro™ patch above the pocket. The bladder is constructed of RF (radio frequency) welded polyurethane coated nylon. As this is a specialized product, our traditional network of dealers do not keep stock of the product. Please contact Mustang Survival Customer Service for more information about this product.