The Tri X-Speed IV is an updated version of the original standard fit, entry level triathlon shoe with the addition of expandable X-Comfort Zones that stretch to reduce foot numbness.
- Breathable and ventilated insole
- Double hook-and-loop straps
- Expandable X-Comfort Zone stretches up to 5 mm to provide comfort and to prevent numbness
- HRS-80 single-layer for good heel stability
- Patented injected ?berglass/nylon outsole
- Special puller speeds up your transitions