Size Information (Reference Only) Xs: Abackalength: A826A21Cm, Aneckagirth: A984-1102A25-28Cm, Achestagirth: A1535-129A39-44Cm S:Abackalength: A1023A26Cm, Aneckagirth: A1338-1417A34-36Cm, Achestagirth: A1771-1968A45-50Cm M:Abackalength: A1220A31Cm, Aneckagirth: 1102-1259A36-39Cm, Achestagirth: A1968-2204A50-56Cm L:Abackalength: A1417A36Cm, Aneckagirth: A1259-1417A39-42Cm, Achestagirth: A2440-2755A62-70Cm Xl: Abackalength: A1614A41Cm, Aneckagirth: A1929-2086A49-53Cm, Achestagirth: A2677-2992A68-76Cm 2Xl: Abackalength: A212554Cm, Aneckagirth: A2440-2598A62-66Cm, Achestagirth: A2952-3228A75-82Cm 3Xl: Abackalength: A2362A60Cm, Aneckagirth: A2716-2913A69-74Cm, Achestagirth: A3779-4291A96-109Cm 4Xl: Abackalength: A299276Cm, Aneckagirth: A3858-4055A98-103Cm, Achestagirth: A4055-4488A103-114Cm Measurements Please Check The Size Chart Or Consult With Us Before Placing Order Ensure Sufficient Room To Slip Two Fingers Between The Measure Tapea And The Dogs Neck And Chest Girth Exquisite Workmanship It Is Has High Quality And Durability Every Needle And Line, Uniform And Particular, Complies With Rigid Manufacturing Standarda Besides, As For Pullover Design, It Is Very Convenient To Put On And Take Off In The Meantime, It Will Avoid Clamping Pets Fur Or Hurting Him Or Her Reflective Lining Reflective Lining Is Highly Visible Near Street Lights Or Head Lights Ensuring Your Pets Safety Water Resistant No One Wants To Get Wet During The Cold Weather, Which Is The Dog Coat Water Resistant It Helps Your Dog Away From The Wetness And Keep Your Dog Dry And Warm