1. Material: polyester2. Weight: about 420 grams3. Size: M/L/XL4. Neck circumference: M is about 18-29 inches, L is about 23-33 inches, and XL is about 28-38 inches5. Bust: M is about 21-30 inches, L is about 27-37 inches, and XL is about 35-45 inches6. Recommended weight: M is about 15-30 kg, L is about 30-45 kg, XL is about 45-60 kg7. Application: medium and large dogs8. Features: lightweight material, flexible and wear-resistant, breathable and comfortable, socket design, easy to wear, with traction rope, safe to use

http://olla.gr/outdoor-dog-vest-chest-harness-large-and-medium-sized-dog-training-vest-dog-leash-size-xl-green/