Good Spanish Saffron Brands?

I'll be stocking up on a few grams of saffron as my camino treat to bring home in September. Can you locals/Spanish natives please tell me what brands i should be looking for in Spain? Reputable and real saffron, not dyed stigmas from other plants (at the best, pieces of shredded bark at the worst!!) I will be on the Zubiri to Burgos stages if anyone can suggest a reputable spice vendor.