People have beat me to it- I was going to suggest RP Blandford & Son in Rancho Cucamonga myself.

I'm rather biased, as I've been friends with the Blandford family since the late 1970s and mother Madelyn Blandford and son Kevin Blandford (both deceased) were the dearest of friends. Paul Blandford has sold the business to Cameron Tillery, a great guy.

True that the new location, in a business park, is rather sterile and has little of the funky charm of the original location in an old building in Redlands.

The place in Coronado is great also. I ordered my full tartan hose there and they came out fantastic! They fit better than any tartan hose I've had and they did an admirable job matching the difficult colours in my tartan.