The New Balance MX997 Training shoe features a breathable mesh upper with synthetic overlays that offers lightweight comfort and support. The innovative New Balance REVlite midsoleadds premium responsiveness and durability. The cushioned footbed provides all-day comfort and absorbs shock. The outsole features non-marking Ndurance rubber compound that gives maximum durability. Flex-grooves deliver greater flexibility. Wt. 9.7 oz.