Here are some pics of the upcoming lunarglide 5 release. Not sure if these where up yet...... UPPER: Evolved Flywire technology hugs the entire length of foot with customizable lightweight support. Heel clip engages upon footstrike for snug fit and support. MIDSOLE: Lunarlon cushioning system with a "bottomless" carrier construction and the Dynamic Support platform provide support and plush cushioning. OUTSOLE: Natural-motion-engineered flex grooves promote an efficient stride. BRS 1000 at heel. Environmentally preferred rubber everywhere else. With arguably the best upper fit in the industry, this shoe provides lightweight support for the mild to moderate overpronator.