Birkenstock - Sierra Rugged. Color Ginger Brown Oiled Leather. Low Stock. On sale for $105.85. MSRP $145.00.. 3.7 out of 5 stars1 left in stockBrand NameBirkenstockProduct NameSierra RuggedGenderWomen'sColorGinger Brown Oiled LeatherPrice$105.85MSRP: $145.00Rating4Rated 4 stars out of 5(55)