The Nike LunarEclipse+ 3 running shoe provides lightweight support for the mild- to moderate overpronator. Evolved Flywire technology hugs the entire length of foot with customizable lightweight support. Heel clip engages upon footstrike to offer snug fit and support. Lunarlon cushioning system with a bottomless carrier construction and the Dynamic Support platform adds support and plush cushioning. Natural-motion-engineered flex groves promote an efficient stride. BRS 1000ï¿½ at heel. Environmentally preferred rubber everywhere else. Wt. 8.9 oz.