Where to buy Fendi Spys

Eluxury, Saks, Neiman and Styledrops are all good choices. I've heard recs for Jomashop as well so you might wanna give them a try.

Bluefly is another one, although I will exercise HEAVY caution when buying from there. There have been stories of fakes from there, but also some very good stories of authentics. It's quite a luck thing with them, I think.
 
If you have authenticity questions, post them in the Authenticate This! thread that is stickied above. That way someone can get to it faster (cos they don't have to sieve through so many threads) :P