NIKE LUNARGLIDE+ 4 RUNNING SHOES Less Wight. Better Fit. Best suitable for mild to moderate overpronators, it still offers the same LunarGlide ride runners love with the addition of dynamic Flywire for an adaptive, glove-like fit-and it"s lighter than its predecessor. The new update for this shoe is the flywire threads that cradle around the feet, this is now covered fully around the shoe for extra comforting. This acts like a sling around your foot and as you run it tightens and cradles your feet, increasing the support and holding it in place in the shoe. Also comes with a strong, ultra-lightweight dynamic Flywire on the shoe"s upper is adjustable through the laces and wraps the midfoot and arch for a personalized, glove-like fit. An inner sleeve wraps around the entire foot for a plush, comfortable fit and easy on and off.