What glass-breaking knife is the best for escaping from a car?

That’s the question Kevin Michalowski, editor of the publication Tactical Gear, wanted to settle.

In order to do so, Michalowski used four different knives — Spyderco Assist, Kershaw Responder, Breakout Safety Tool and Gerber Hinderer CLS — to break through windows and cut seat belts.

All performed reasonably well, except for the Breakout Safety Tool, which appears to be as about as useful as a stuffed animal if you’re trapped in a vehicle.

Which one of these knives you’d want to have in a life or death situation.