The Hoka Men's Challenger ATR 4 Running Shoe in Midnight Niagara is a stylish and comfortable sneaker designed for running and jogging. Featuring a rubber outsole, synthetic upper material, and fabric lining, these shoes provide support and durability for various activities. The blue and lime green color combination with the Hoka One One logo accents give a sporty and vibrant look, perfect for activewear. With a low top shoe shaft style and no insoles included, these shoes offer a personalized and comfortable fit for men sized 11 in US and 45 1/3 in EU.