The discussion about Single Coats made me look at Tilly's coat, and wonder if she would be classed as having a single coat. I never questioned whether she had a double coat, because I thought all Labs did. Her coat seems to have guard hair and undercoat, but the guard hair is definitely finer and shorter than Cooper's (or our previous Lab, Ginger) When someone describes a Lab as having a Single coat, what exactly does it look like? What common breeds have a single coat? All of our labs have been primarily field dogs, but while Cooper's build is the most typical of an American Field Style dog, she has the coarsest guard hair and the biggest Otter tail of any of them.