FIT FOR MOST SIZE DOGS - Please use soft tape to measure your dog and select the size based on the Chest Girth (the widest part of ribcage) and Back Length (base of the neck to base of tail). If Your Dog is Between Sizes, or if Your Dog is Strong or Bushy, please Select One Size Up. Our dog coat winter fit for most breeds small dogs, medium dogs, large dogs and extra large dog..WARM FLEECE DOG COAT - When the cold weather hits, soft fleece to keep your dog warm all winter long. AOFITEE fleece dog pajamas for winter is made with soft and warm polar fleece material for ultra warmth. It's soft and lightweight, it can still keep out the cold when wet, so your dog always stays warm..HIGH COLLAR AND FULL BODY STYLE - AOFITEE dog coats for large dogs features high stretchy design that offers sung fit, four-leg style and turtleneck design offers extra protection, and keeps your dog's head and legs warm and comfy in nippy weather. Full abdominal coverage design can effectively keep the abdomen warm and protect the dog from the cold in winter..EASY TO WEAR & ADJUSTABLE - These attractive dog pjs with put on closure, easy to put on and take off. The neck and chest are fitted with adjustable elastic straps, which can be adjusted to fit the size of your dog for greater warmth and convenience..MULTI-FUNCTIONAL DOG APPAREL- Our winter dog jackets are great for any indoor and outdoor activities like sleeping, daily jogging, walking, hiking, having a nice trip, climbing, and more activities, meeting your pet's various needs. Can be used as a usual coat for dog, or pajama for dog, shedding suit for dog.