PET VEST MATERIAL: Guji nylon (polyester) + velvet edging + reflective webbing SUITABLE SIZE: S: Neck circumference: 25 36cm/9.84 14.17 Abdominal circumference: 28 50cm/11.02 19.7 M: Neck circumference: 30 42cm/11.81 16.54 Abdominal circumference: 34 56cm/13.39 22.05 How about running happily and safely with pets STAYTOP dog harness, let us explore happily with our fur friends! Pet vest: The seat belt is specially designed to distribute the pressure evenly and safely on the chest of the pet, thereby preventing suffocation and not rubbing the sensitive skin of your dog, especially the underarm area. Front clip: Allows you to better control the trajectory of your dog, let them learn to use the heel and reduce the desire to pull. This is very important for training dogs. Chest clip: Give your dog a comfortable control. Suitable for casual walks. Reflective strips: reflect light around the straps and the traction rope (about 1.45m long). Use at night can provide more visibility, increase safety, and prevent pets from being lost. Easy to wear: The cat harness can be adjusted with 4 adjusters. Customize a comfortable and fit style for your dog, so there is no need to adjust it frequently. Just put it on the head and connect tightly.