This is a knit hat for dogs with ear holes. It's made with a pale yellow-green, mint green, and bulky yarn, using three strands held together to create a durable and warm fabric. The face and neck are ribbed, and the crown is stockinette stitch. To ensure a comfortable fit, it's made with a soft, stretchy, and skin-friendly wool blend, knitted with straight needles. Although crochet hats can be made quickly, they tend to be stiff and not very stretchy, so I've chosen to use straight needles, even though it takes more time. I've been making knit hats for dogs for 5 years, and I knit each stitch carefully, hoping your dog will stay warm and cute. ■ Size Face circumference: 34cm - 38cm Please measure your dog's head circumference from the base of the ears, across the forehead, and under the chin. ■ Materials Main body: 100% wool and a blend of 70% wool and 30% acrylic Pom-pom: Wool blend acrylic Please note that this is a handmade item and may not be perfect like commercially produced goods. While I knit each one carefully, there may be some loose ends or slight irregularities in the stitch pattern. Knit products can unravel or tear if pulled strongly or subjected to impact. Please hand wash in lukewarm water and avoid wringing. Since hanging can cause stretching, remove excess water with a towel and dry flat. It will be shipped via Yu-Packet Post Mini. It will arrive flattened, but please note that it will return to its original shape if you shake it gently or steam it.