---
product_id: 78293473
title: "Air 2 - X-Small, Light Grey - Ideal for Dogs with 9-12” Back Length - Durable, Breathable Backpack-Style Carrier - Perfect for Walks, Short Hikes & Public Transportation"
brand: "k9 sport sack"
price: "¥33043"
currency: JPY
in_stock: true
reviews_count: 13
category: "K9 Sport Sack"
url: https://www.desertcart.jp/products/78293473-air-2-x-small-light-grey-ideal-for-dogs-9
store_origin: JP
region: Japan
---

# Patented Angle-Base support Triple-reinforced stitching durability Max airflow with Macro-Mesh Air 2 - X-Small, Light Grey - Ideal for Dogs with 9-12” Back Length - Durable, Breathable Backpack-Style Carrier - Perfect for Walks, Short Hikes & Public Transportation

**Brand:** k9 sport sack
**Price:** ¥33043
**Availability:** ✅ In Stock

## Summary

> 🎒 Carry your best friend in style and comfort—because every walk deserves a wingman!

## Quick Answers

- **What is this?** Air 2 - X-Small, Light Grey - Ideal for Dogs with 9-12” Back Length - Durable, Breathable Backpack-Style Carrier - Perfect for Walks, Short Hikes & Public Transportation by k9 sport sack
- **How much does it cost?** ¥33043 with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.jp](https://www.desertcart.jp/products/78293473-air-2-x-small-light-grey-ideal-for-dogs-9)

## Best For

- k9 sport sack enthusiasts

## Why This Product

- Trusted k9 sport sack brand quality
- Free international shipping included
- Worldwide delivery with tracking
- 15-day hassle-free returns

## Key Features

- • **Secure & Supportive Design:** Patented Angle-Base platform plus collar and harness clips keep your dog safe and stable.
- • **Built to Last, Ready to Roam:** Durable Cordura fabric and triple-reinforced seams promise years of reliable adventures.
- • **Breathe Easy, Adventure Ready:** Extra-large Macro-Mesh panels ensure your pup stays cool and comfy on every journey.
- • **Tailored Fit for Tiny Explorers:** X-Small size perfectly fits dogs with 9-12” back length, from Chihuahuas to Toy Poodles.
- • **Functional Details for Hassle-Free Use:** Adjustable cinch straps, fur flap zipper guard, and dual side pockets combine convenience with style.

## Overview

The K9 Sport Sack Air 2 X-Small is a breathable, durable backpack-style dog carrier designed for small breeds with 9-12” back length. Featuring extra-large Macro-Mesh panels for ventilation, a patented supportive Angle-Base, and secure collar/harness clips, it ensures comfort and safety on walks, hikes, and public transit. Constructed with tough Cordura fabric and reinforced stitching, this carrier blends functionality with longevity, making it the go-to choice for active dog owners.

## Description

desertcart.com : K9 Sport Sack Air 2 - X-Small, Light Grey - Ideal for Dogs with 9-12” Back Length - Durable, Breathable Backpack-Style Carrier - Perfect for Walks, Short Hikes & Public Transportation : Pet Supplies

Review: Best puppy carrier - The best carrier for my pup. Sturdy but comfortable
Review: Highly Recommend - Best carrier for dachshund! He doesn’t like walking so this backpack is super convenient and comfortable for carrying him!

## Features

- BREATHABLE DOG CARRIER - The Air 2 is your go-to pack for everyday adventures. Extra large Macro-Mesh on each side keeps your pet cool by allowing for maximum air flow, while also ensuring high structural integrity.
- FIND THE RIGHT SIZE - The X-Small is best for dogs with a length of 9-12” from collar to the base of the tail and a girth up to 23”. Typical dog breeds that will fit this size backpack include Chihuahua, Havanese, Pug, Shih Tzu & Toy Poodles.
- SUPPORT & SAFETY - Our patented Angle-Base provides a supportive platform for your dog (and their tail), while the collar and harness security clips keep them safe & secure on every adventure.
- NO FUSS, JUST FUNCTION - This backpack features side & back cinch straps, a fur flap to prevent your dog’s hair from getting stuck in the zipper, an adjustable collar enclosure, and adjustable, dual side pockets.
- MADE TO LAST - The Air 2 is constructed with durable Cordura fabric and uses triple-reinforced stitching to ensure the longevity of seams on high-load areas. Enjoy it on walks, short hikes, and bike rides for years to come!

## Technical Specifications

| Specification | Value |
|---------------|-------|
| ASIN | B075CY8ZM9 |
| ASIN  | B075CY8ZM9 |
| Age Range Description | All Life Stages |
| Best Sellers Rank | #21,243 in Pet Supplies ( See Top 100 in Pet Supplies ) #30 in Dog Carrier Backpacks |
| Brand Name | K9 Sport Sack |
| Color | Light Grey |
| Customer Reviews | 4.3 4.3 out of 5 stars (3,058) |
| Date First Available | April 26, 2016 |
| Date First Available  | April 26, 2016 |
| Department | unisex-adult |
| Department  | unisex-adult |
| Is Discontinued By Manufacturer  | No |
| Item Dimensions LxWxH | 9 x 8 x 15 inches |
| Item Package Dimensions L x W x H | 17 x 10 x 2.4 inches |
| Item Weight | 0.9 Pounds |
| Item model number | AIR-GRY-XS |
| Item model number  | AIR-GRY-XS |
| Manufacturer | K9 Sport Sack |
| Manufacturer  | K9 Sport Sack |
| Material | Fabric |
| Model Name | AIR-GRY-XS |
| Number of Items | 1 |
| Product Dimensions  | 9 x 8 x 15 inches; 14.4 ounces |
| Size | X-Small |
| Specific Uses for Product | Aggression Training, Anti-Anxiety and Behaviour Management, Interactive Play, Outdoor, Suitable for Adult pets |
| Style | Extra Small |
| Target Audience Keyword | Dog carrier, dogs |
| Warranty Description | USA-BASED COMPANY, PERFORMANCE GUARANTEED: Wrong size? No problem. Any issues? We’re here for you. Whatever the problem may be don’t worry we’ll cover it, but we’re happy to hear any good stories and see your adventures with your dog. This bag is backed by a 60-Day Quality Guarantee. Must be sold by seller "K9 Sport Sack" or warranty is voided. |

## Product Details

- **Brand:** K9 Sport Sack
- **Color:** Light Grey
- **Material:** Fabric
- **Product Dimensions:** 8"L x 5"W x 14"H
- **Special Feature:** Adjustable

## Images

![Air 2 - X-Small, Light Grey - Ideal for Dogs with 9-12” Back Length - Durable, Breathable Backpack-Style Carrier - Perfect for Walks, Short Hikes & Public Transportation - Image 1](https://m.media-amazon.com/images/I/81McEttmo1S.jpg)

## Available Options

This product comes in different **Color, Size** options.

## Questions & Answers

**Q: How does it fit, underneath the seat in front of you, on a commercial airlines?**
A: The K9 Sport Sack is not TSA approved (dog needs to be fully enclosed). That being said several pet families use this to easily navigate through the airport. We have had a few reports that some airlines will allow this on the plane. But definitely check with them before you try to fly.

**Q: Can you wear this on the front as well as the back?**
A: Yes you can. The dog will be facing you and you will likely need help clipping the sternum strap. Many pet owners wear the K9 Sport Sack in this manner especially if their dog experiences high anxiety.

**Q: Reason why these bags chose to be designed without an opening for the tail to hang out of? Assume having to keep their tails tucked in would hurt them**
A: You should contact K9 directly for a proper answer.  I’ve carried my dog for 1/2-1hr in the bag, and it doesn’t seem to affect his tail being tucked in at all.  Usually towards the end of the hour, he gets antsy more for his legs being confined than any problems with his tail. 

I would guess that creating an opening for the tail would have three problems: one would be it weakens the bottom of the bag, reducing the amount of weight/size of dog that could subsequently be carried; the second would be how would you get the tail through the opening.  Would you pull the tail straight through?  I doubt a dog would like the feeling of that.  Would you make the opening big enough to bend the tail through?  Now you’re talking about opening the whole bottom of the bag up, and how would you close that up to keep the bottom strong enough to support the weight.  Finally, with a tail hanging out, there are all sorts of possibilities of injury to the tail; if you’re riding a bike, would it dangle down to the rear wheel.  Could it snag on bushes/branches if you’re out hiking.  If you’re in a crowd, is it going to get bumped or grabbed.  

A dog properly positioned in the bag would not have any weight on the tail, his weight should be on his butt.  If the weight is on the tail, you may be leaning back too much.

**Q: I have a 16lb corgi puppy, but he will obviously grow to possibly 25-30lbs. Should i get a medium or large?**
A: I have a 23# and 33# corgi and both fit in the large. I got the extra cushion inside to help the 23# with leverage

## Customer Reviews

### ⭐⭐⭐⭐⭐ Best puppy carrier
*by A***R on February 9, 2026*

The best carrier for my pup. Sturdy but comfortable

### ⭐⭐⭐⭐⭐ Highly Recommend
*by B***B on December 13, 2025*

Best carrier for dachshund! He doesn’t like walking so this backpack is super convenient and comfortable for carrying him!

### ⭐⭐⭐⭐ Convient way to bring your dogs along.
*by L***A on February 19, 2026*

We have two for our dogs, this fits a standard Jack Russell.

---

## Why Shop on Desertcart?

- 🛒 **Trusted by 1.3+ Million Shoppers** — Serving international shoppers since 2016
- 🌍 **Shop Globally** — Access 737+ million products across 21 categories
- 💰 **No Hidden Fees** — All customs, duties, and taxes included in the price
- 🔄 **15-Day Free Returns** — Hassle-free returns (30 days for PRO members)
- 🔒 **Secure Payments** — Trusted payment options with buyer protection
- ⭐ **TrustPilot Rated 4.5/5** — Based on 8,000+ happy customer reviews

**Shop now:** [https://www.desertcart.jp/products/78293473-air-2-x-small-light-grey-ideal-for-dogs-9](https://www.desertcart.jp/products/78293473-air-2-x-small-light-grey-ideal-for-dogs-9)

---

*Product available on Desertcart Japan*
*Store origin: JP*
*Last updated: 2026-03-18*