All Pompon&Pets accessories are handmade in France. This harness is Y-shaped. This shape allows for shoulder clearance and therefore does not hinder the dog while walking. Our dog harness is designed with high-end waterproof fabric, ensuring exceptional water resistance, polypropylene webbing, and brass hardware to reinforce the harness to the maximum. Size guide: Size XS: (band width: 1.5 cm) Neck circumference: 22 - 30 cm Chest circumference: 30 - 36 cm : Chihuahua ... Size S (band width: 2 cm): Neck circumference: 30 - 42 cm Chest circumference: 36 - 52 cm : Pug, Jack Russell, Spitz, Dachshund, Yorkshire ... Size M (band width: 2.5 cm): Neck circumference: 40 - 52 cm Chest circumference: 46 - 70 cm : Beagle, Shiba Inu, French Bulldog, Staffy, Cocker ... Size L (band width: 2.5 cm): Neck circumference: 46 - 68 cm Chest circumference: 58 - 90 cm : Golden Retriever, Husky, Staff, Bulldog