L size, neck circumference 16~19cm, chest circumference 20~30cm, back length 12.2cm, suitable for rabbits, cats, etc. Comfortable: Made of wear-resistant mesh material and nylon, breathable and padded, the soft strap with a 47-inch fully elastic belt gives your rabbit a lot of freedom Please accurately measure the size of your pet before placing an order! If your pet’s bust is between two sizes, it is recommended that you choose a larger size and adjust the strap to prevent the strap from being too small Various advantages: the strap is convenient and quick to wear, can be washed at 30 degrees, and does not fade Adjustable: additional nylon straps with snap buckles, you can adjust the seat belts on the chest and abdomen to fit your pet better, easier to control, and prevent him from slipping out