Works great with ALL NATHAN hydration vests

This garment contains recycled yarns STAY COOL Lightweight mesh back panel engineered to enhance ventilation and provide 20+ UPF protection

This design function helps create a more energized feel while exiting the toe-off stage of your stride

with soft and padded tongue

5-spike plate configuration

Men's Topo Ultrafly 6 US Size:11.0 Works great with ALL NATHANTopo have freshened up the Ultraly from top to bottom to amplify the comfort and light stability thats been the foundation of Ultrafly from the start. With even more cushioning than its predecessor, they redesigned the medial post to now wrap the heel to ensure smooth stability throughout. The ZipFoam midsole continues to evolve, now providing an even more responsive ride. Additional rubber coverage on the outsole improves durability and traction,