Ultralight: The entire harness weighs less than 60g, the same as a car key. Your cat is free to roam after wearing it and loves it! 360° back chest circumference: chest pressure is even and safe to prevent pulling and to choke and protect the cat from the fragile trachea and throat without pain. Suture added to the chest: to better adapt to the cat’s neck and chest which has a strong three-dimensional feeling. This anti-fall cat sling has soft edges and elastic padding to prevent injuries and escapes. High elasticity and drying: light filling material, moisture absorption, quick drying , odor reduction, toughness, wear resistance and high elasticity. Size S: Bust: 23-28cm and Weight: 1-3kg; M: Bust: 28-33cm and Weight: 3-4.5kg; L: Bust: 33-38 cm and Weight: 4.5-7 kg.