Irish Doodles vary, most often, in terms of size and coat texture. It is best to consult a breeder if you want your Doodle to have a certain "look". They can tell you the basic differences in these qualities that each generation brings. Remember, F1 is the result of crossing a purebred Poodle (size varies) with a Purebred Irish Setter. An F2 sees two F1 Irish Doodles being bred together. F1B's and F2B's result from that generation of Irish Doodle being "back-crossed" with one of the original parent breeds (Poodle or Irish Setter) depending upon which traits the breeder wishes to strengthen.
Poodle x Irish Setter mixes will have a shaggy, wavy coat, however, depending upon the proportions of coat genes inherited, some will be curlier than others.Size is also a consideration when looking for you new pet. Poodles come in Standard, Miniature and Toy sizes, however, it is almost always the Standard ones that are used in breeding this type of hybrid. Those seeking a "Mini Irish Doodle" should search for breeders using Medium and Mini sized parents, but be warned, down sizing often comes with extra health problems.