NIKE Solarsoft Slide #431884-444 Nike Fuse technology on the upper provides ultra-strong, super-light support. No-sew seams mean less irritation. Dual-durometer midsole/outsole provides a soft, pliable Nike Solarsoft foam midsole for cushioning and support. Built-in grooves on the footbed for increased airflow and drainage. Outsole flex-grooves for a more natural range of motion.