Suoran Kindle Fire HD 8.9 Inch Case Sleeve Wool Felt Case Sleeve Cover Bag For Amazon Kindle Fire HD 8.9 Inch (7.5x10.0x0.4) - Green Wool felt is made of 100% natural wool. Wool felt have the characteristics of buffering and shock absorption, protecting your equipment at anytime and anywhere. Water-resistant, fire-safe, and prized for its deeply saturated lightfast colors. soft to the touch ?Weight light. Environmentally friendly material. Sustainable, renewable and biodegradable