Birkenstock - Madrid Big Buckle Iridescent. Color Black. On sale for $90.93. MSRP $140.00.. 2.5 out of 5 stars+2Brand NameBirkenstockProduct NameMadrid Big Buckle IridescentGenderWomen'sColorBlackPrice$90.93MSRP: $140.00Rating3Rated 3 stars out of 5(2)