This warm ear warmer uses a wool blend yarn with excellent heat retention on the outside. Unisex. Adjustable size. Specifications 【Material】Outer ear: 85% acrylic + 15% wool Inner ear: Chamois™ [polyester] 【Color】Gray (GY) 【Size】Free size 【Folded size】Φ12.5 x 7.5cm thick Purchased several years ago, used about 5 times a year, and there are no particular stains. (There are some pills as shown in the photos.) It will be shipped via Takkyubin Compact. Please understand that this is a used item before purchasing. Color...Gray系 Stains, tears, odors, etc....None