About This Choke-Free Design: Unlike a traditional collar, the wide chest piece distributes pressure evenly across the chest and shoulders. This prevents strain on the neck and trachea, making it a safer option for dogs prone to respiratory issues or "reverse sneezing." Secure Fit: The "A" shape is the original Puppia design. It features a fixed neck opening that slides over the head and an adjustable chest belt with a heavy-duty quick-release buckle, ensuring the harness stays securely in place during walks. Superior Comfort: This specific model often features a 100% cotton shell paired with a soft poly-fleece lining, providing a cushioned feel that helps prevent chafing against your dog's skin. Durability & Control: The harness is equipped with a reinforced metal D-ring on the back for leash attachment, giving you better control over your dog without causing them discomfort if they happen to pull. Size: Extra Small : 8.7" Neck, 9.5"~13.4" Chest Overview Size : X-Small Color : Beige Pattern : Polka Dots Brand : Puppia Material : Cotton, Poly-fleece