Gerber's Sport Wood Saw features a course and extremely sharp double cut blade that stows in it's own handle for convenient packing.

The blade is operated by a handy thumb screw on the side.  A smooth sliding action retracts the stainless blade into the glass filled nylon handle, and holds it securely to prevent accidental opening in your pack. Cuts up to 1/3 faster than ordinary saws of this size.  Click the thumbnail above for a close up detail of the aggressive tooth cut.