SMALL SIZE- Small Chest Girth: 9-11"(23-28cm),weight:3-6lb(1-3kg).It's suitable for most cats puppies and small animals.Please measure your cat carefully and refer to the size chart before order,including : cat harness and lead set(Nylon Leash 150cm) . SOFT BREATHABLE MATERIAL- the vest harness is constructed of a lightweight,breathable mesh,wrap-around chest back,the pressure on the chest is even and safe to prevent NO pulling and choking and to protect the cat fragile neck from without pain. . ADJUSTABLE VEST HARNESS- with buckle that sustains large loading capacity to prevent your pet from breaking away and you can easily adjust the harness so it offers your cat the perfect fit,escape-proof due to the secure jacket design. . ESCAPE PROOF OUTDOOR HARNESS - This real comfy small pet harness,the chest girth is adjustable which allow a just-right fit for your flexible cat and both sides have a sturdy Safety Buckle,Suitable for daily walking,jogging,training,and any outdoor recreations,activities. . EASY ON AND OFF- This Step-in cat harness is simple to put on and take off with back buckle and magic tape.two heavy duty D rings can attach leash when you take a walking and training.Super easy to use,Please feel free to contact us if you have any question. .