Felt is an elastic, light, aseismatic material. Made of with environmentally friendly material. And it's recycling reproduct.

Product specification,

A smart little case for your iPhone (see available sizes below) made with thick, soft wool felt. Original design by Byrd & Belle. Strap design keeps your earbuds wrapped neatly around the case. Feels soft and offers great protection.

Felted material is 100% wool felt and is around 1/8" thick. This high quality felt is a sustainable and renewable material and offers strength while remaining soft to the touch. Leather strap is made of top-grain, vegetable-tanned leather and is hand-dyed here in the studio using environmentally friendly, low v.o.c. dyes. Each piece is handled and studied and minor variations in texture and color, though they are slight, are part of the unique character of each piece.

Nickel Snap on the front, nickel rivet on the back. Case is fully lined with cotton fabric to protect your iPhone from the snap & rivet.

The standard size of this case is for the iPhone 5. It is also available for the iPhone4 or iPhone3. If you'd like it to be sized for the iPhone 4 or 3, leave a note with your purchase. If no note is left, I will send a case sized for the iPhone 5.

MATERIALS::Wool: 1/8" thick, 100% wool felt, GreyLeather: Hand-dyed, premium vegetable tanned leather, BrownInterior: Cotton fabric in Grass GreenHardware: Nickel finish