A find at Costco....
Organic Bakers Craft is an unbleached blend of hard red wheat, with 11.5% protein. As a reference, King Arthur all-purpose flour has 11.7% protein. Central Milling is used by several local famed bakeries (Acme and Tartine), and I believe mills the WF's 365 brand flour.
I just paid $13.99 for a 25 lb bag, which seems like a steal! (Recently paid $4.19 for 5lbs of KA at Walmart - the cheapest around here.) This may only be a local SF Bay Area item, but if interested I'd request it for your store (FYI, I did call first as the store I normally go to didn't have it - but all the others around did, go figure.)
The Coscto item number is 475605.