Dog backpack · Mountainsmith

Mountainsmith K9 Dog Pack

A well-built pack from an outdoor brand

Updated October 2026

Quick verdict

Great value from a respected pack maker.

Strength
Padded harness, panniers and handle.
Trade-off
Size by chest.
Right buyer
Hikers and campers.
Price seen
$25.00
Dog size
Small
Product weight
5 ounces
Closure
Buckle
$25Retailer price. Prices change; check the current price before you buy.

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Why it matters

Mountainsmith sizes by chest girth: small 20–30 in, medium 24–40 in, large 32–44 in. The pack has a metal D-ring, a tapered torso shape, reflective trim on front, back and sides and a weather-resistant interior coating. A four-point adjustable chest harness with padded sternum pad, independent back harness, two zippered panniers and a padded grab handle complete it.

Who it's for, and who should skip it

Good fit if

  • Hiking and camping
  • Dogs carrying their own gear
  • Most sizes

Look elsewhere if

  • Heavy loads
  • Puppies
  • Very hot weather

Pros and cons

Pros

  • Trusted maker
  • Padded harness
  • Low price

Cons

  • Size by chest
  • Hand wash
  • Moderate capacity

Limitations to weigh

  • Start with an empty pack and keep loads light; a fit adult dog should carry no more than about 10–25% of its weight, and puppies none. Ask your vet first.
  • Measure chest girth, neck and back length with a soft tape and use the maker's chart; between sizes, size up.

Specifications

Every figure below comes from the source shown in brackets. Where the maker doesn't state something, we say so instead of estimating.

Price seen$25Retailer
ClosureBuckleRetailer
Model number19-80035-02Retailer
Product weight5 ouncesRetailer
Dog sizeSmallRetailer
CareHand Wash OnlyRetailer

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Final verdict

A great-value trail pack.

Where to buy

Our links open this exact model's product page. Prices and stock change; check what's included before you order.

$25Retailer price. Prices change; check the current price before you buy.

Each button opens this exact model. We may earn a commission on tracked links; it never changes what we publish. Disclosure

Questions buyers ask

How do I size the Mountainsmith K9 pack?
By chest girth; small is 20–30 in.
Does it have a handle?
Yes, padded.