The K9 Sport Sack Trainer is the perfect entry-level backpack dog carrier for small breeds, growing puppies, and dogs learning to socialize. Designed for pets weighing 4–30 lbs, this lightweight, ergonomic carrier makes short walks, hikes, and travel convenient, comfortable, and safe for both pet and owner.

Crafted with ventilated side panels, a wide base, and padded shoulder straps, the Trainer ensures your dog stays secure, comfortable, and well-supported during non-strenuous activities. A side water bottle pocket, cinch straps, and a variety of bright, playful colors make this carrier both functional and stylish.

Engineered under the guidance of veterinarians, dog trainers, and outdoor product experts, the K9 Sport Sack Trainer offers the perfect combination of ergonomics, safety, and quality, making it ideal for small to medium-sized owners and their beloved pups.

✅ KEY FEATURES.

Premium design for small dogs, beginner pet carriers, and safe outdoor adventures.

✅ BULLET POINTS.

🐶 For Small Dogs – Supports pets from 4–30 lbs, sizes XS–L.
🎨 Unique Color Options – Fun and vibrant colors to match your style.
💨 Ventilated Side Panels – Ensures airflow to keep your dog cool and comfortable.
💺 Wide Base Design – Provides ample space for your dog and tail.
🎒 Padded Shoulder Straps – Comfortable fit for small to medium dog owners.
💧 Side Water Bottle Pocket – Stay hydrated during walks or outings.
🔒 Secure & Adjustable Fit – Side cinch straps help keep your pet safe and snug.
🛡️ Vet-Approved Safety – Developed with veterinarians, dog trainers, and outdoor engineers for durability and ergonomics.
🦴 Lumbar Support Strap – Added support for owners (not included on XS).