SIZE SELECTION - Please refer to the size chart (image 2) and measure your pet's chest and neck circumference to choose the correct size. BREATHABLE AND DURABLE MATERIAL - The dog vest is made of soft and breathable mesh to ensure comfort without stuffiness, suitable for all seasons. The leash is made of polyester for durability. ADJUSTABLE DESIGN - Adjustable straps allow for a secure and comfortable fit. The puppy harness features sturdy buckles and D-rings to help prevent pets from escaping. CUTE DESIGN - Features a cartoon bear head pattern for a stylish and adorable look. The vest-style design helps distribute pressure evenly across the chest and shoulders, reducing strain and preventing choking, ideal for walking, jogging, exercising, and other outdoor activities. EASY TO USE - The pet harness and leash set has convenient buckles that are easy to open and close, allowing quick release and secure attachment. NOTE: Measurements are manually taken; please allow 1-4 cm variation. Due to differences in lighting and screen displays, colors may vary slightly. Actual product may differ slightly from the image.