This is a knit hat for dogs with ear holes. It's knitted with straight needles, so it's softer and more stretchy than those made with crochet hooks. The face and neck are ribbed, and the top of the head is stockinette stitch. 6-wale flat elastic is threaded around the face, so it should be less likely to slip. ■Size Face circumference: 38cm-42cm Please measure your dog's head circumference from the base of the ear on the forehead side, around the chin. ■Materials Main body: 100% wool Pom-pom: Wool blend acrylic As this is a handmade item, it is not perfect like commercially available products. Each one is carefully knitted, but there may be some loose thread ends or slight irregularities in the stitch pattern. Knit products may 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 lightly or steam it.