ThrowRaft says its TD2401 is the world's first Type IV inflatable throwable flotation device on the market, and it has gained U.S. Coast Guard approval. The re-packable device measures 11 by 14 inches and can be thrown like a square cushion, ring or horseshoe buoy. It can be manually activated to inflate and will auto-inflate when submerged. Deployed, it has a minimum buoyancy of 20 pounds. The yellow cushion fits into an orange pouch with a 24-gram carbon-dioxide cylinder. The TD2401 costs $129.99.