I absolutely LOVE the red slicker brush made by Les Poochs (
www.lespoochs.com) It has a straight and curved side and isn't really hard. The straight side works wonders on mats and doesn't seem to hurt them. I only use it when I have a really bad one on Biscuit as he likes a comb better, but use it much more often of Jolene. It is pricey, but worth it. I also like their shampoos and conditioners, but also a bit pricey and not quite moisturizing enough for Biskie.