High-quality Material - The dog sweaters are made of 100% acrylic fibers, very stretchable,which is super soft and comfortable to wear. The dog sweater also keeps the dog warm in cold weather. Classic Style - Rhombus Plaid Vintage Cable-knit ,more charming and good looking during the cold winter, and perfect for the holidays and daily wear. The Red one is perfect for Christmas and Thanksgiving. Bring a festive atmosphere to your furry friend. Please measure your dog size including the neck, chest and back, and better to choose the size according to the chest measuring result.If any of the measurements are 'between' two sizes, choose the larger size.