Mesh upper for breathable comfort Lace-up closure for a snug fit FuelFoam midsole is responsive and cushiony Abstract zigzag midsole design Grippy, durable outsole The Reebok Zig Dynamica is imported. What's next for your feet? The Men's Reebok Zig Dynamica Running Shoes, of course. FuelFoam in a zigzag design means responsive cushioning with each and every step while the mesh upper ensures you're cool and comfortable no matter what.