Nike Air Zoom Terra Kiger 4 Men’s Running Shoe Men, Blue Grey, Size. lightweight support. maximum traction. built for the trails, the nike air zoom terra kiger 4 men’s running shoe features a flymesh upper for breathable support and a rugged outsole for multi-surface traction. benefits breathable flymesh upper for a lightweight feel flywire cables work with the laces to increase comfort and balance when running foam midsole with zoom air units in the heel and forefoot for a springy step top cap for added protection from rocks and tree roots waffle design with exaggerated lugs on the bottom of the shoe for traction on wet surfaces product details weight: 275g approx. (men’s size 9) offset: 4mm.