Women’s 510 Blundstone Chelsea Boots Size 8 Australian = US Women’s 11 (US Men’s 9) Color: black leather Condition: Pre-loved. In genera, the leather is well-conditioned and cared for. There is a small white blemish near the gusset, the gusset has fraying, and the tread is worn. Please look at the outsole closely before purchasing. Priced accordingly. The women's Blundstone Black 510 from the Original 500 Series combines a premium oil tanned black leather upper with side goring for a superb fit and ultimate comfort technology. Superior design and technology is designed to help reduce fatigue and prevent tired feet.