Blundstone 2440 Classic Vintage Brown Australian Boot Company Blundstone Originals Lace up Brown 2428 Blundstone 2427 Originals Lace Up Rustic Black Blundstone Canada Blundstone 2428 Brown Leather (Originals Lace Up) aboutshoes.com. Maintaining the premium leather upper that youve come to know and expect from us, the 2428 Brown lace up boot offers a perfect fit and stylish point of difference. A Polyurethane midsole for comfort and XRD Technology in the heel for supreme shock absorption makes them perfect for everywhere life takes you. Features Premium weatherproof leather. Premium leather elastic sided boot. Fully removable shaped comfort footbed. Polyurethane (PU) midsole thermo urethane (TPU) outsole highly resistant to hydrolysis and microbial attack. Oil, acid and organic fat resistant. Outsole heat resistant to 140C. Steel shank ensures correct step flex point, assists with torsional stability. Extra set of footbeds for fit adjustment. Lightweight and durable.