The SMB HYBRID 6.0 from OMS is unique in the fact that it can be inflated in 3 ways; using an octopus at the opening on the bottom through a one way duck valve allowing air only in one direction, with the inflator valve by using your inflator / dry suit quick disconnect hose or by orally inflating with your mouth. Comes in orange, yellow or pink and is 1.8 meters long.