Despite my name, I'm probably one of the last places where you'd choose to lay down.

I lock things up tight or help you to run away fast.

If you're doing this, usually the fastest wins. If you're describing your origins, human always wins. If adrenaline is pumping, replace the E and add ING to describe your heart.

A sleeveless shield for chill, it hugs the chest so still. A layer light and neat, warmth it does discreet.

I'm deatly thin with a wandering eye, My talent is getting under your skin, I come with baggage - a thread, not a lie It won’t hurt a bit, they say as I come in.