Womens Birkenstock, Arizona Wool Felt Narrow Width. A version of the ever popular classic slide that has a wool felt upper and ultra soft woolen fleece covered footbed.
Upper: wool felt Footbed
Lining: wool
Adjustable buckles
Anatomically shaped cork-latex footbed

Lightweight and cushioned outsole

Please note: Birkenstocks run wider than most US Womens shoes:
The Birkenstock Narrow width is equivalent to a US Womens B width (medium)
The Birkenstock Regular width is equivalent to an US Womens D width (wide).

The widths on Birkenstocks are similar to US Mens shoe widths:
The Birkenstock Narrow is equivalent to a US Mens B width (narrow).
The Birkenstock Regular is equivalent to a US Mens D width (medium).