USCG APPROVED TYPE 4 THROW CUSHION: The Bluestorm Gear Throw Cushion is a US Coast Guard-approved Type 4 PFD. ABOUT US: Bluestorm was born of a long family history — over 85 years creating life-saving personal flotation devices. That's time spent saving lives and ensuring the best time possible on the water with the highest care and rigorously-tested durable materials. All Bluestorm life vests are hand stitched, hand inspected, and made to last. That's what you get with every Bluestorm PFD: a life jacket that was created to save a life. Beyond its primary function as a flotation device, this U.S. Coast Guard-approved cushion doubles as a comfortable seat or backrest on your boat. Made to aid in flotation when rescue is near by.