Mountainsmith K-9 Dog Pack – Hiking Backpack Harness for Dogs

This rugged dog backpack harness is designed for dogs who love the trail as much as their humans do. The Mountainsmith K-9 Dog Pack combines a comfortable adjustable harness with durable saddlebag storage so your dog can carry water, treats, waste bags, and trail essentials on longer adventures.

Breathable mesh panels and padded foam help keep your dog comfortable even during warm weather hikes. The adjustable chest and back harness system ensures a secure fit while preventing slipping or shifting during movement.

Whether you're hiking forest trails, exploring the backcountry, or just heading out for a long weekend adventure, this pack lets your dog do what dogs were built to do: work alongside their human.

Then you add the practical stuff:

• Adjustable 4-point harness system
• Breathable mesh panels for airflow
• Water-resistant fabric
• Dual saddlebag storage compartments
• Durable outdoor construction

Size Guide 

How to Measure Your Dog

Use a soft measuring tape and measure around the widest part of your dog’s chest, just behind the front legs.
Make sure the tape is snug but not tight.

Between Sizes?

If your dog falls between sizes, choose the larger size for a more comfortable fit—especially for dogs with deep chests or thick coats.

Part of the Collette & Company collection of adventure gear built for dogs who don’t fit standard equipment.