When a golden retriever and standard poodle are bred to produce first generation golden doodle puppies, the puppies are titled F1 and have equal parts golden retriever and standard poodle characteristics. When F1 golden doodle puppies are bred to produce a second generation of true golden doodles with equal parts golden retriever and standard poodle, they are still titled F1. If more poodle qualities are required to produce nonshedding, hypoallegenic or intelligence qualities, a golden doodle F1 is bred with a full bred standard poodle and those puppies are titled F1b or first generation golden doodle bred back to poodle.  To get F2 pups, two non related F1b's are bred together.  We do not have any F2's at this time, but we plan to have they soon.