Birkenstock - Boston - Oiled Leather (Unisex). Color Black Oiled Leather. $145.00. 4.4 out of 5 stars+3Brand NameBirkenstockProduct NameBoston - Oiled Leather (Unisex)GenderUnisexColorBlack Oiled LeatherPrice$145.00Rating4Rated 4 stars out of 5(608)