Inspired by the toughest of work boots Blundstone #2238 Rustic Black Chelsea boots have premium water-resistant leather uppers with super tough, deep ridged soles for heavy duty comfort. Durability, functionality, style. Not just boots. Bundstone boots. UK women's sizes convert to one size lower. Therefore a woman who wears a UK size 5, would wear a Blundstone size 4. Blundstone half sizes are wider, not longer. For example, a size 10½ Blundstone would be a wider fitting size 10. The Blundstone Australian size for men and kids are the same as UK sizing.