ATTENTION SIZING: Please measure your pets chest girth and neck girth before purchase. Sizing does you can refer to our size guide and sizing chart for the best fit. If in between sizes, Please order one size larger, Correct size and weight enable a no slip and no choke comfortable fitting pet vest Simple steps for putting on and taking off: Two section on and off Completed in 3 seconds, Put it around your neck, Then fasten its chest circumference together. Dogs do not feel restricted, Doesnt rub the back of his legs at his chest and comfortably fits around the neck and chest area, Adjustable strap ensures that it is suitable for use during its growth process Breathable Comfortable: Cationic fabric soft lightweight Breathable mesh keeps dog comfortable during walks and runs, Suitable for All Season Weather. It has extremely high durability, Tensile resistance, Tear resistance and fusion resistance Quality services: set includes - 1 dog Harness and 1 dog Leash, the leash matches perfectly with the harness, More Pretty. for Teacup Dog, Chihuahua, Dachshund, Shih Tzu, Chinese Crested, Chiweenie, Pomeranian, Yorkie, et.... Reflective strip design: 60 inch reflective dog leash and reflective dog vest are a huge benefit for the safety of evening walks, Edging reflects light which when light shines on the reflection strips it almost looks as though he is wearing a light around his harness, So I also recommend this harness for those that walk their pets at night