[Only suitable for small and medium dogs, please do not buy large dogs] The pet sweater is a tight-fitting style, smaller than ordinary sweaters. I recommend buying a L or XL size. Please carefully measure your pet's size according to the size chart before purchasing. Made of Soft and Warm Wool Knitted Material---This thermal clothes is made of high-quality soft and warm knitted material, which is super warm and soft to wear. It will keep your dog, pet or cat warm in cold weather indoors or outdoors. Good Elasticity, Easy to Put on and Take off---This cardigan has good elasticity and is easy to put on and take off. The high-neck design can keep your dog very warm in winter or autumn. Easy Machine Cleaning-- Wash with cold water on a gentle cycle, wash with similar colors. Do not bleach; Do not wring; Do not tumble dry; Do not dry clean; Lay flat to dry Comfortable to Wear---Timeless classic crew neck with belt/harness holes. You can easily put on any collar or harness and walk your dog without any problem. Size---Size: S: 1-2kg (suitable weight), 26cm (back length) * 26cm (chest girth) M: 2.5-3.5kg (suitable weight), 30cm (back length) * 32cm (chest girth) L: 4-5kg (suitable weight), 36cm (back length) * 34cm (chest girth) XL: 5-6kg (suitable weight), 40cm (back length) * 40cm (chest girth)