Full Length Photo Pretty Businesswoman Wearing Stock Photo 1311956354 2696. The new Blundstone Aerocork sandals offer a summery, high tech reinterpretation of the iconic design of classic Chelsea Boots. The upper, made from fine, premium water resistant suede leather, guarantees protection and durability, blending in perfect harmony with the innovative eco friendly midsole in recycled cork and PU to guarantee the utmost sustainability and a lightweight feel in every step. Comfort is guaranteed by the XRD technology integrated into the heel, offering excellent support and superior shock absorption on every type of terrain, from long nature walks to afternoons by the beach or in the city.