Quote Originally Posted by faizalenu View Post
I checked out my Chucks, and sure enough the heels curled up. I checked my other shoes (3 pairs of dress shoes, my bowling shoes, soccer flats, soccer cleats, and wrestling shoes) and the toes come up in all of them when unloaded.

I will have to check out my gait the next time I put them on...
Yup I walk normal with my chucks on. The reason, while the unloaded shape of the shoe is curved up, the "deflected shape when loaded" (engineering phrase used in bridge and structure design) is flat. Your mileage may vary....