NIKE Mens Lunarglide+ 5 Running Shoe Black/Dark Grey/White mesh Made in USA Rubber sole Evolved Flywire technology hugs the entire length of foot with customizable lightweight support. Heel clip engages upon footstrike for snug fit and support Lunarlon cushioning system with a "bottomless" carrier construction and the Dynamic Support platform provide support and plush cushioning Natural-motion-engineered flex grooves promote an efficient stride. BRS 1000 at heel. Environmentally preferred rubber everywhere else