ABUBA 4 - Dog Carrier Backpack

Why ABUBA4

So the Walk Doesn't Have to End.

ABUBA4 took 1 year and 2 months to develop, built around one question: what does a dog actually need when walking on its own isn't an option?

Tired legsCrowded spacesLong tripsRides

4 Core Features

Built Around Four Changes

01

A Belt That Stays Put

Unlike a belt you clip on only when needed, ABUBA4's waist belt stays fixed in place. Helps distribute up to 70% of the carrying load through the waist belt.

02

Weather Built In, Not Bolted On

A Wind Blanket is already part of ABUBA4 — close it around your dog for wind, rain, or cold, with nothing extra to attach before you head out.

03

Thicker Where It Counts

Shoulder padding is twice as thick as the previous design for added cushioning.

04

Room for the Rest of the Outing

Expanded storage gives you more room for everyday essentials.

The ABUBA Lineup

Which ABUBA Fits Your Dog?

The right ABUBA depends on your dog's size — and how much carrying support you need.

LITE2

XS – L

Lightweight design.

ABUBA4

S – XL

More carrying support & built-in features.

This product

MAX

2XL – 3XL

Extended sizing for larger dogs.

How It Fits

The fixed waist belt helps distribute the load, while the shoulder straps keep the carrier stable and close to your body.

Waist belt wornShoulder straps adjustableStays close to your body

Find Your Size

Measure two things — your dog's sitting back length and chest circumference.

Size	Back length	Chest
S	35–43 cm / 13.8–16.9 in	Up to 52 cm / 20.5 in
M	43–50 cm / 16.9–19.7 in	Up to 62 cm / 24.4 in
L	50–57 cm / 19.7–22.4 in	Up to 72 cm / 28.3 in
XL	57–67 cm / 22.4–26.4 in	Up to 82 cm / 32.3 in

Sizing rule: If the two measurements suggest different sizes, go with the larger one.

Back length running longer than usual? EONG-KOO is designed for that kind of length adjustment — see Accessories.

ABUBA4 is built for dogs whose weight you can carry comfortably. It's a carrying system for movement, not a stationary rest spot.

Adaptation Guide

Get Them Comfortable Before You Carry.

Even a well-fitted carrier can feel unfamiliar at first. Walk your dog through it in five steps, at their own pace.

1

Familiarize

Let your dog see and sniff ABUBA4 before anything is worn.

2

Put It On

Put ABUBA4 on without expecting your dog to move in it yet.

3

Adjust

Fine-tune the straps and belt while your dog stands still.

4

Reassure

Reward calm behavior in short sessions before carrying.

5

Carry

Once your dog is comfortable wearing it, start with short carries.

Colors

ABUBA4 comes in three colors.

Pengi-Beige

Pengi-Black

Pengi-Gray

Accessories

Pair ABUBA4 with the accessories built for it.

EONG-KOO — 5 cm Booster Cushion

For the back-length sizing adjustment described in Find Your Size.

GUNG-KOO — Memory Foam Cushion

A memory foam cushion accessory for ABUBA4.

FAQ

Questions Before You Buy

Answers to what people ask most before ordering ABUBA4.

The fit feels smaller than I expected.

The first time you use it, your dog may tense up or keep trying to stand, which can make the fit feel tighter. Carry your dog for about 7 minutes while gently patting them to settle down, then check the fit again.

How do I pick the right size?

Measure your dog's sitting back length and chest circumference. If the two measurements point to different sizes, choose the larger size.

What if ABUBA4 doesn't fit or work for my dog?

Contact our support team — they can help with sizing, fit, or a return.

So the Walk Doesn't Have to End.

Designed and tested in-house at Pengineer — ABUBA4 took 1 year and 2 months to develop.

Directly researched and made by Pengineer.

Every stitch checked before it ships.

Only new, unworn products are sold.

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ABUBA 4 - Dog Carrier Backpack

ABUBA 4 - Dog Carrier Backpack

So the Walk Doesn't Have to End.