AutoKey

The double lock pin no longer catches on my belt loop when I’m moving around, which was my biggest gripe with standard keys. Folds up flat enough to sit in a jeans pocket without poking me, and it still works smoothly one-handed.

The folding design is the whole reason I bought this, and it lives up to the hype—it's flat enough to disappear in a pocket yet opens into a solid grip when needed. The double lock pin works smoothly without catching on my jacket lining, which was my biggest gripe with standard keys. Absolutely wort

I keep one clipped inside my wallet and honestly forgot it was there until I needed it—the folding design makes it flat enough to disappear, but it opens up with real leverage when you’re working a double lock in a hurry.