Dog backpacks for hiking

Two builds of the same pack: one where the saddlebags come off and one where they don't. Both use the EZ Fit™ harness, both adjust in about 30 seconds, and both come with a Kobuk water bladder. Four sizes, fitting a 17" to 42" chest.

It’s how the pack is made that counts

  • Triple-stitched

    Every seam on the 2-Piece's bags is triple-stitched — and so is the harness they ride on.

  • Water-resistant

    Sheds rain and shrugs off creek crossings, while the material stays breathable.

  • EZ Fit™ adjustment

    Locking Velcro straps adjust the pack to your dog's shape in 30 seconds or less.

  • Built for comfort

    Padded where it sits against your dog, with nothing scratchy touching their coat.

Our gear out in the real world

  • Bernedoodle puppy wearing the Mile High 2-Piece pack on a fall trail, standing beside its owner
  • Owner adjusting the EZ Fit straps on a yellow lab's blue Pathfinder pack mid-hike
  • Four dogs at camp with their saddlebags hung on a branch behind them
  • Side view of a Bernedoodle puppy carrying the Mile High 2-Piece pack on the trail
  • Hound wearing a teal and gold pack looking out over a ledge on the trail
  • Two dachshunds in Wanderer packs looking up at their owner on a green trail
  • I got a size large for my lab and it's a great pack and a great harness! I use it almost every day!
    Verified customer review
  • I've tried all sorts of backpacks & harnesses for my dog and have never found anything even CLOSE to as awesome as this product!
    Verified customer review
  • I am so happy with my 2 backpacks! They are made well, fit nicely, and look great!
    Verified customer review

What size does my dog need?

Two measurements and you’re done. Take them before you pick a size — breed and weight aren’t reliable on their own.

  1. 1

    Measure the girth

    Measure around the widest part of your dog's ribcage, just behind the front legs. Snug, not tight — you want two fingers underneath.

  2. 2

    Measure the neck

    Around the base of the neck, where a collar sits. Write both numbers down before you pick a size.

  3. 3

    Between two sizes? Size down

    EZ Fit™ straps take up slack, so the smaller size usually adjusts to fit. A pack that starts too big can't be cinched small enough.

My dog's measurements were right on the border between a medium and a large, so I went with a medium, and he still has some room in the straps.
Laurel White · Verified review, Adventure 2-Piece Dog Pack

Backpack size guide

AlphaPak dog backpack sizes by chest girth and neck measurement, in inches
SizeChest girthNeck
S17–22"10–14"
M22–27"14–20"
L27–32"16–23"
XL32–42"22–30"

Still between sizes? Send us your dog’s measurements and we’ll tell you which size we’d ship.

1-Piece or 2-Piece?

Same harness, same sizes, same included water bladder. The difference is whether the saddlebags come off.

Feature comparison between the Adventure 2-Piece Dog Pack and the Adventure 1-Piece Dog Pack
Feature2-Piece1-Piece
SaddlebagsSlide off with EZ Latch™Sewn on
Works as a harness aloneYes — take the bags offNo
EZ Fit™ harnessYesYes
Kobuk water bladderIncludedIncluded
Triple-stitchedYesWater-resistant and durable
SizesS · M · L · XLS · M · L · XL
ColorsSixThree

The ‘No’ list

What you won’t find in these packs.

  • No one-size-fits-all — four sizes, and the harness adds an Extra Small
  • No complex fittings — EZ Fit™ does it in 30 seconds or less
  • No sewn-shut decisions — the 2-Piece's bags slide off
  • No scratchy straps — padded where it touches your dog
  • No leaky bladders — the included Kobuk has a double-locking top
  • No boring colors — six of them, matched across the line
  • No guesswork on fit — measure once, use the chart
  • No fine print on returns — 30-day money-back guarantee
  • No warranty clock — the packs are covered for life

Goes with the pack

The harness on its own for everyday walks, a spare bladder, and the 4-inch carabiner for people who want a really big carabiner.

Questions people ask before they buy

Dogs are our heroes

At the most basic level, we're a group of dog people who love spending time out there with our best buds. We built these packs to hold up to the miles, the weather, and the dog wearing them — in colors you won't find on anyone else.

About us
Dog Backpacks & Saddle Bags for Hiking | AlphaPak