Based on the Ultra platform, The Propét Ultra FX features a secure hook and loop adjustable strap for easy on and off. Stretchable laces that flex and adjust to feet that swell, with mesh fabric designed for optimal breathability, complemented by a cushioned collar and tongue for ultimate comfort. A sturdy heel counter and nylon tab offer enhanced support, making them perfect for high-impact activities. Inside, the removable Ortholite X25™ open-cell foam delivers exceptional cushioning in slim layers, and our EVA spacer allowing you to tailor your fit. The feather-light EVA midsole is paired with integrated rubber treads, providing superior grip and traction on any surface.