Popsugar Health & Fitness Running Shoes Nike Flex TR8 Training Shoe Review These Stylish Nikes Are Designed For Indoor and Outdoor Training — and They're Only $70 11 July 2018 by Nicole Yi View On One Page Photo 4 of 7 ADVERTISEMENT () Start Slideshow Share This Link Copy ← Use Arrow Keys → 4 Nike Flex TR8 in Gunsmoke ($70) Nike Flex TR8 in Gunsmoke $70 from nike.com Buy Now Previous Next Start Slideshow Running ShoesRunningWorkoutsFitness GearNike