Non-Shedding Trait Coats can be long, wavy, short or curly. More hair variation in the F1B, generations. F2B- Means... There is a mix of generations. It would be an F1 Doodle and an F1B parent. Less common they are a great generation. You see the Non- Shedding Quality in this generation so they are good for homes with moderate allergies. You get good traits of personality and good health also.