AIRE 146DD Self-Bailing Whitewater RaftThe AIRE 146DD Self Bailing Whitewater Raft is the go anywhere, do anything raft in AIREs DD Series. The first D stands for Diminshing tubes which help the raft punch waves & ride high and dry. The second D is more of a mystery. we think it stands for "double wide" Like the trailer you grew up in, its big enough for the whole family and gear with added stability in big water. With ample storage for multi day expeditions and a compact design for seven