This is a knit hat for dogs with ear holes. The yarn is combined to resemble denim. To ensure a comfortable fit, it's made with soft, stretchy, and skin-friendly wool blend yarn, knitted with straight needles. While crochet hats are faster to make, they tend to be stiff and less stretchy, so I've chosen to use straight needles even though it takes more time. The face and neck areas are ribbed, and the crown is stockinette stitch. The main body is knitted with four strands of yarn held together for warmth and durability. I've been making knit hats for dogs for 5 years, and I knit each stitch with care, hoping your dog will stay warm and look cute. ■ Size Face circumference: 38cm - 42cm Please measure your dog's face circumference, from the base of one ear, across the forehead, under the chin, and back around. ■ Materials Main body: Wool blend (100% wool and a combination of 70% wool and 30% acrylic) Pom-pom: Wool blend, acrylic As this is a handmade item, it is not perfect like commercially available products. While I knit each one carefully, there may be some loose ends of yarn or slight irregularities in the stitch pattern. Since it is a wool blend, please hand wash in lukewarm water and avoid wringing. Hang drying may cause stretching, so remove excess water with a towel and dry flat. Pilling may occur due to friction; please cut them off with scissors.