NIKE Women's In-Season TR 2 Training Shoe Pink/Violet/Grey/Citrus synthetic-and-mesh UPPER: Innersleeve constructed upper provides ease of entry and secure lockdown while memory foam sockliner gives you superior comfort underfoot. MIDSOLE: Full-length Phylon midsole provides superior lightweight flexibility. OUTSOLE: Strategically placed rubber pods bring excellent traction and durability while flex grooves in forefoot allow foot to move in a natural motion.