Birkenstock - Oswego - Leather. Color Gray Leather. On sale for $108.97. MSRP $145.00.. 3.5 out of 5 stars+2Brand NameBirkenstockProduct NameOswego - LeatherGenderWomen'sColorGray LeatherPrice$108.97MSRP: $145.00Rating3Rated 3 stars out of 5(11)