Comfortable and Safe Design The vest style design can distribute the pressure of the leash evenly on the chest and shoulder to avoid suffocation or neck strain. This is much safer and more convenient than a simple halter or H-style harness. High elasticity and dryness, light filling material, moisture absorption, odor reduction, toughness, wear resistance and high elastic properties. No deformation after easy washing. Escape Proof Cat Harness This adjustable kitty harness has adjustable straps and a Velcro fastener that allow a perfect fit for your flexible cat. Both sides have a sturdy safety buckle for a more secure closure - don't worry about your cat getting lost on outdoor adventures. SUGGESTION Please measure your pet's chest size carefully before choosing the cat harness. Size S: Chest: 23-28 cm and weight: 1.5-3.0 kg M: Chest: 28-33 cm and weight: 3.0-4.5 kg L: Chest: 33-38 cm and weight: 4.5-6 kg. 5 Years of Customer Service All of our products come with 5 years of customer service and free lifetime technical support.