Anti-slip underfoot tech

A zippered pocket in the back secures your phone and has a vapor barrier to guard it from sweat

A kid's-specific last and a sockliner size checker helps to accommodate growing feet

Designed to be flexible and agile

including a fully adjustable waistband

Unisex Nike Zoom Rival XC 6 US Men's Size (Women's):9.0 (10.5) Anti-slip underfoot techToeing the cross country starting line for the 1st time? Chasing a personal best after years of racing the field and the clock? Run down your goals and your opponents in the Zoom Rival 6. The mesh upper keeps you comfortable through the tape while the midsole helps keep you stable during those long, gruelling mid race miles in any condition.