Normally, poodles are strongly line bred, for a combination of traits such as size and coat colour.
While some crosses are accidental, many crosses are intentionally bred. Among reputable breeders, crossbreeding is an attempt to breed dogs with positive characteristics of two recognized breeds. For example, the Labradoodle was originally bred in an attempt to create a dog with a Labrador temperament and a hypoallergenic poodle coat. The intent was to create guide dogs for people with allergies. However − as with all crosses − only some puppies from crossbreeding of two purebreds will inherit both desired traits, some will inherit one trait, and some neither. Even when crossbred dogs manifest dominant traits, these dogs may not pass on the desired traits to offspring. One of these desired traits are the fleece coat of the Standard Poodle. If a puppy has this trait, they are a lot less likely to shed.