If you can't find plain navy blue women's socks, try the big "boys" in "uniform" socks if your women's shoe size is about 8-9! They fit, are comfortable and are the right shade of navy blue!
π Boys' Outdoor Climbing Convertible Trousers - Waterproof | Clothing
47 Review
π Fruit of the Loom 6 Pair Cushion Ankle Boys' Clothing: Comfy and Stylish Selection for Active Boys
57 Review
Boys' Adidas Active Sports Tricot Athletic Clothing
45 Review
π Bold Pack Sleeve Active Hoodie Sweatshirt Set for Boys' Clothing - Stylish and Comfortable!
47 Review