The XDeep SMB 130cm Open is simply a long tube open at one end to inflate it using a regulator, exhaled bubbles or other means.

No dump valve is required as the air can expand out of the end of the tube; care must be taken to keep tension on the bouy to keep it upright and avoid air spilling out.

The reflective strip uses 3M Scotchlite reflective tape, which carries a Solas maritime visibility certificate.

A clear plastic tube is fitted to the side of the XDeep SMB to provide a place for small notes or a glow stick.

A big sling underneath makes attaching a spool or reel easy and filling the bag a breeze. A small loop of bungee keeps the SMB neat and tidy in storage.

SMBs Explained and Compared