Please follow the size chart: Size XS:-----Neck Girth(5.5"-7.5")--------Chest Girth(8"-10")---------Back Length(7.50")------Fits Dog Weight(1.2-2.2 lbs) Size S:------Neck Girth(6.5"-8.5")--------Chest Girth(10"-12")-------Back Length(8.50")------Fits Dog Weight(2.2-4.5 lbs) Size M:-----Neck Girth(8"-10")----------Chest Girth(12"-14")-------Back Length(10")---------Fits Dog Weight(4.6-6.5 lbs) Size L:------Neck Girth(10"-12")---------Chest Girth(14"-16")-------Back Length(11.75")------Fits Dog Weight(6.5-10 lbs) Size XL:----Neck Girth(12"-14")---------Chest Girth(16"-18")-------Back Length(13.5")------Fits Dog Weight(10-14 lbs) Size XXL:---Neck Girth(14"-16")---------Chest Girth(18"-20")-------Back Length(15")------Fits Dog Weight(12-18 lbs) Our dog clothes are made for small dog breeds such as Chihuahua and Yorkie,Keep your pet dog warmer and more lovely. Please Do Check The Size Chart Before Placing An Order. High Quality, Premium Fabrics, Solid color classic and comfortable hooded sweatshirts with pockets No More Pet Hair Or Dander On Your Furniture! Hair Shedding Is A Common Problem For Pet Owners, This Hooded Dog Sweater Will Help Minimize The Hair Shedding With Our Dog Outfits That Won'T Allow The Hairs To Fall On Your Bed Or Couch Machine Washable In Cold Water Important!!!The sweaters are small in size and are not suitable for large dogs.Mainly For Small Sized Dogs, Doggies, Puppy, Pooches, Such As Chihuahua, Poodle,Cats, Cup Poodle, Pomeranian, Yorshire Terrier, Bichon Frise, Cocker Spaniel, Young French Bulldog, Young Labrador And So On.