The KNX Lace Shoe fuses its leather upper to the sole without glue or solvents, using KEEN's own bonding process to create a seamless, longer-lasting connection between the two. A minimal 4mm heel-to-toe drop keeps the foot closer to a natural, neutral position, so the shoe moves with the foot instead of dictating how it lands. A no-tie stretch lace system locks in a snug fit for quick on-and-off wear, with a traditional lace option included for a different look. What Our Gearhead(R) Experts Are Saying:"I've worn these nearly every day for months, and the fit still feels as seamless as it did on day one. Nothing's come unglued or started separating at the sole the way cheaper bonded shoes usually do."