The fabric uses fleece, so it's stretchy and feels good against the skin. The chin strap can be adjusted with Velcro, allowing for 2-5cm of movement. The item will be compressed for shipping, but it uses synthetic cotton, so it will return to its original shape if you adjust it after opening. SS size: Face circumference 30-34cm (red line) *Please refrain from price negotiations as each item is handmade. In addition, S and M sizes, as well as a Sodashi (white horse) version, are also available. Please comment if you are interested. If you would like to purchase multiple items, please comment and I will create a dedicated listing.