Size: Adult regular fit, One Size fits most. Also fits juniors and teens. Dimensions: 10" (W) x 8.5" (L) Machine knit 90% Wool/10% Yak Wool blend Fully-lined with 100% recycled polyester micro fleece for extra softness and protection from the elements. The addition of yak wool helps reduce its footprint by utilizing one of the most sustainable wools in the world. HELP THOSE IN NEED, #PROJECTWARMTH: Share a photo wearing your Turtle Fur product and tag us in it. Use #projectwarmth in the caption. We'll see it and send one hat or cold weather accessory to someone in need. The Wesley's got a professional look for dressed-up affairs and an ultra-soft, highly breathable build for any outdoor occasion. Perfect for trips to the office or "sick days" at the mountain.