Birkenstock - Boston Super Grip (Unisex). Color Black Leather. $155.00. 4.1 out of 5 starsAdd to favorites. 0 people have favorited thisBrand NameBirkenstockProduct NameBoston Super Grip (Unisex)GenderUnisexColorBlack LeatherPrice$155.00Rating4Rated 4 stars out of 5(64)