Pembroke Welsh Corgis have a thick double coat which is waterproof, consisting of a soft, light undercoat and a coarse top coat. They also shed often so need to be groomed daily. Pembroke Welsh Corgis can be black & tan, fawn, red, or sable with white markings.
Cardigan Welsh Corgis have a much wider variety of colors and markings, from brindle to black and white. Their double coat is heavy-shedding and consists of a medium, dense undercoat and a longer top coat.