Men's Propet Ultra Work Slip-resistant Sneakers Built for demanding environments, this work-ready lace-up delivers stability, comfort, and slip-resistant performance. The Ortholite® X25™ removable insole and spacer help support long hours on your feet with customizable cushioning. The durable upper and round toe allow natural mobility while maintaining structure where needed. A slip-resistant rubber outsole ensures traction across a variety of workplace surfaces.