Birkenstock - Tatacoa Outdoor. Color Futura Sky Blue Birko-Flor. On sale for $108.75. MSRP $145.00.. 3.0 out of 5 starsBrand NameBirkenstockProduct NameTatacoa OutdoorGenderMen'sColorFutura Sky Blue Birko-FlorPrice$108.75MSRP: $145.00