hapee dog sweaters, halloween pet clothes for dog cat hapee 100% made of acrylic yarn, the fabric is very soft, comfortable, warm. since the neckline and hem thread weaving, making this sweater windproof and warm. this sweater has a slight elasticity, it is suitable for autumn and winter wear. cool three layer wavy skirt design and stylish style, this is a great gift for your puppy. <p>please measure length,neck,and chest of your pet, it is better to choose the sweater size based on the chest of your pet,the measurement chart is as following:</p> <p>xs(x-small): length 8.7" - neck 7.9" - chest 12.2""</p> <p>s(small): length 10.2" - neck 10.7" - chest 13.0"</p> <p>m(medium): length 12.2" - neck 13.0" - chest 14.6"</p> <p>l(large): length 15.4" - neck 15.0" - chest 19.3"</p>