Size:L | Color:Navy Blue Creation Core, we do want to provide the best products and service to our customers. Size Chart: Creation Core , we do want to provide the best products and service to our customers. Sizing for each dog is unique. Similar to our clothing and accessory, medium size from one designer is not the same for another. So please check with the size chart carefully so that you won’t get the wrong size. Size: XS:Chest(cm/inch):26/10″ Back Length(cm/inch):22/9″ S:Chest(cm/inch):32/12.6″ Back Length(cm/inch):25/9.8″ M:Chest(cm/inch):40/15.7″ Back Length(cm/inch):28/11″ L:Chest(cm/inch):46/18″ Back Length(cm/inch):33/13″ Delivery Time Standard Shipping: usually 10-15 business days. You will find the Estimated Delivery Date too long. In fact it is not ture. Most of our customers receive their package in 10- 10 business days. You can check it in our feedback. Feedback You satisfaction and feedback is really important to us! Please leave a positive feedback if you are satisfied with our item and services. We wish you had a comfortable shopping experience!