XXS， XS and other sizes are different in the shape， see the specific picture shows.<br /><br />Product Description<br />Large Dog Harness Vest Pet Products Comfortable Nylon Net Cloth 8 Colors <br />The Secret To a Hassle-Free Experience With Your Service Dog<br />Every Service Dog owner knows how frustrating it is when people question your partner.<br />How Will This Durable Vest Solve Your Problem?<br />Properly identifying your Service Dog with this professional looking vest will often stop Hassles before they start. People see the vest and that your partner is not just a pet.<br />Feature:Padded，Personalized，Reflective<br />Material:The surface layer is nylon， mesh cloth， hardware lock<br />Details1:3D reflective yarn<br />Details2:Special safety lock buckle<br />Details3:Adjustable size<br />Details4:Breathable mesh<br />Details5:A starting point + vehicle function<br />Details6:With D buckle<br />Size：S，M，L，XL，XXL