Inherently Buoyant Vest - I600 Non-reversible vest style Type I PFD designed for comfort and performance. Aquafoam flotation foam provides a minimum of 22 lb. (98 Newton) buoyancy. Designed to turn most unconscious wearers face up Offshore PFD with encircling body belt and hinged back panel Foam-filled collar for additional head support Heavy-duty 210 Denier nylon shell and lining 62 sq. in. (400 sq. cm.) of 3M Scotchlite Reflective Material SOLAS grade6755 on panels and collar Two chest adjusters for improving flotation angle Special opening on back to accommodate most brands of fall protection harnesses Velcro patch on shoulder of vest to mount light for best visibility Features a USCG approved whistle with pocket for whistle and light storage USCG Approved Type I