I took the liberty to come up with some options. This one's fun. She's been fitted with electrical relays, that allow you to...
Captain America: What about this one? No, no. That's just a prototype. What's it made of? Vibranium. It's stronger than steel and a third the weight. It's completely vibration absorbent. How come it's not standard issue. That's the rarest metal on earth. What you're holding there, that's all we've got.
Are you quite finished Mr. Stark. I'm sure the Captain has some unfinished business. What do you think? Yes, I think it works.