Cat harness and leash set: S: Bust 23-28cm, Recommended weight 1-3kg; M: Bust 28-33cm, Recommended weight 3-4.5kg; L: Bust 33-38cm, Recommended weight 4.5-7kg. Color: as shown in the picture. 360 surround chest and back: Even chest pressure for safety, avoiding pulling and suffocation, protecting cats from fragile trachea and neck injuries. Chest stitching: Fits the cat's neck and chest with strong three-dimensional effect. Soft edges and elastic pillows to prevent injuries and escape. High elasticity and ultra light: Lightweight filling material, total weight less than 50g. Moisture absorption, quick drying, reduced odor, toughness, wear resistance, high elasticity. Comfortable outdoor harness: Close to your cat's body, breathable mesh cover keeps cool. Soft and light, suitable for daily running, jogging, training and all outdoor leisure activities.