A best bet is the Mossimo Women's Keilani Boots in Bark (pictured) for $34.99. Buy two for the in-cart price of $52.48. With free shipping, that's $26.24 per pair, $18 off, and the lowest total price we could find. These are available in sizes 6.5 to 11.
Women's Mossimo Keilani Lace-Up Combat Boot - Bark 10 is also available at these stores