Where can I buy them??
Only black for sale at stores. (Stealth Cleats by Softspikes).
the adidas pin system spikes should also work - comes in white
Welcome to the forum. Sorry I can't be more helpful, but I've found the same to be true.
When one popped out on me, I bought the black. Golfsmith is the only brick-and-mortar store I've found them so far.