Amazon.com | Nunn Bush Kore Pro Bicycle Toe Slip-On Black 7 。Nunn Bush Kore Pro bike toe slip-on shoes offer a sophisticated look paired with athletic-inspired comfort. Crafted with a smooth leather upper and a classic bicycle toe design, these loafers feature dual elastic gore panels for an easy, flexible fit. The Kore technology provides a dual-density outsole and a supportive midsole designed for all-day wear, making them an ideal choice for office environments or formal occasions where comfort is a priority. Finished with a padded collar and a durable traction sole.