Welcome to MountainMuttDogCoats
Designer of Winter Dog Coats and Sweaters

MountainMuttDogCoats Boulder® makes winter dog coats and designer dog sweaters for the active dog, older dogs and post op dogs who need special care. Our dogs coats are handmade and can be custom made from top quality technical* fabrics such as fleeces and softshells as well as leather for warmth in the winter. These designer dog coats are generously cut, warm, water-resistant and lightweight.

All our winter dog coats and sweaters are specially crafted to fit the dog comfortably. We will help you choose the right size and do minor alterations for free.

We Fight Canine Cancer

Designer Winter Dog Coats

Fran Blum and Mac

Our company was inspired by Mac who was diagnosed with bone cancer in September 2009. After being shaven for surgery Mac needed a really warm coat that fit him properly. His comfort and the needs of the many other cancer patients we saw at the Flint Animal Cancer Center at CSU showed us that there were old, ill and short-haired dogs that needed well-designed coats to get through our harsh Colorado winters. They needed coats that fit properly and offered protection from the elements.

After returning quite a few commercially made coats we were fortunate to find someone to make Mac a custom coat. It was made from black leather and lined with fleece. It fit his deep chest and short back. We made it with a collar to protect his vulnerable neck area. Mac’s coat became our prototype the following year.

Each year we donate 5% of sales to the Flint Animal Cancer Center. We donate coats to needy dogs and rescues around the USA.

We discount 20% for recent rescues, service dogs and the military. Please call to place your order for these categories.

All of our garments are handmade in Boulder, Colorado, USA.

*Technical fabrics are lightweight fabrics which are engineered to perform various functions for the wearer. Unique properties are engineered into each fabric including strength and stretch, density, resistance to wind and water, retention of warmth, elimination of unwanted moisture, and shrinkage.