Product description Made from soft material, it is lightweight and convenient. Wide and adjustable straps prevent the bag from cutting into your back/shoulder, ensuring a comfortable wearing experience. It is a good companion for outings, cycling, walking, shopping, and traveling. Suitable for small to medium pets. Size details: S: 11.7, suited pet bust under 11.8, weight up to 5.51lb M: 12.5, suited pet bust under 9.4-17, weight up to 5.51lb-7.71lb L: 15, suited pet bust under 14-19.6, weight up to 7.71lb-14.33lb XL: 16, suited pet bust under 16.9-24.8, weight up to 14.33lb-20.94lb Note: Please make sure to measure your pet for accurate sizing before purchasing to ensure the perfect fit. The actual color of the item may slightly vary from the pictures due to lighting and different monitors. Because of different measurement methods, there may be a range error of 1-2cm.