In the 1980s, Mountainsmith built one of the industry's earliest dog packs. After 40+ years of continued dog pack innovation, the 2019 K9 Pack introduces the same trusted fit-designed with and approved by a local, Golden, Colorado veterinarian. The 4-point adjustable chest harness, independently adjustable back harness, non-slip buckle system, mesh panels, and perforated EVA foam offer a custom, comfortable fit and added breathability. Now with added water resistance, your dog's gear is protected from unpredictable weather, shallow river crossings, and inevitable mud puddles.