I've had that happen before. Basically Fedex is delivering to your local post office, and the post office is taking care of the very last part, so when Fedex marks it as delivered they mean delivered to your post office. You should then be able to track the final leg that your USPS has left. I...
How do you guys always get such fast shipping? Mine are still on label created, and not just these, I feel like that's the norm for me. I don't think I've ever gotten the 2 day quick turnaround that surprises people. Is it because of regions? I'm in SoCal.
IIRC Nike used to use an open cell foam that was squishier and more comfortable on their shoes in the 80s. The only problem is it wore out and crumbled faster, so they switched to polyurethane.