Men's Nunn Bush Kore City Rally Mesh Moc Toe Slip-On Shoes This slip-on sneaker delivers supportive comfort with a streamlined, easy-wear design. The man-made and textile upper is paired with a combination of mesh and unlined interiors to promote airflow. Dual Comfort cushioning works alongside KORE technology to support natural movement. A lightweight rubber outsole helps absorb impact while maintaining everyday traction.