Birkenstock - Oswego - Leather. Color Gray Leather. On sale for $72.50. MSRP $145.00.. 3.4 out of 5 stars+2Brand NameBirkenstockProduct NameOswego - LeatherGenderWomen'sColorGray LeatherPrice$72.50MSRP: $145.00Rating3Rated 3 stars out of 5(12)