【6 SIZES AVAILABLE - SIZE GUIDE】Available in 5 sizes from XL to 6XL, perfect for medium and large dogs like English Bulldog, Boston Terriers, German Shepherd, Labrador, Golden Retriever as holiday or new year gift. Please refer to our size chart carefully before purchase. Note: measure your dog's chest around the widest part, leave two finger’s room around your dog’s chest, add 1-2 inches to back length for comfort. If your dog is between two sizes, we suggest the larger one. 【REMOVABLE HARNESS DESIGN FOR WALKING】Our warm sports clothes for winter comes with a removable straps harness with double d-ring hook and strong buckle on the back, adjustable and convenient, helping adjust the chest size twice and make it easy for pet owners to walk dog without wearing an extra harness. Furthermore, you can detach the harness from this jacket if you don’t need it. It’s also can be as dog windbreakers and machine washable. 【WINDPROOF FOLDING FURRY TURTLENECK】The dog winter jacket features the thick and soft faux fur-lined collar which is folding. This humanized plush turtleneck design is aimed to protect dog’s ears and head from cold wind and wet. With 2 adjustable elastics on the both sides of collar, the collar can be adjusted to prevent cold wind and snow from getting into the coat effectively and keep them warmer indoor and outdoor. 【WATER RESISTANT & REFLECTIVE 】Made of 3 layers: premium waterproof oxford cloth out layer, silk wadding and cotton in the middle layer and the soft touching lining, keeping your dog warm in cold snowy winter. Our lightweight dog outdoor jacket for large dog winter is specialized for outdoor adventure, walking, running, hiking, camping. The reflective strips on the both sides of the back and "My world My rules" words can keep dog safe/visible in dark or at night. 【ZIPPER, ELASTIC, BUCKLE DESIGN】The back is designed with STURDY zipper on the back for easy to put on and take off. The protective guard on the dog vest harness prevents dog fur and skin from getting accidentally zipped. There is a concealed elastic for better adjustable fit on the inner chest and a buckle on the inner back avoids this jacket taking off by dog. This creative design gives your furry friend a comfortable feeling and perfect cozy fit.