Energy is a new style added to our family. The upper from Energy is made with the B-Knit technology, which knits the entire upper part of the shoe in a single piece that is attached to the sole. The sole is equipped with the Dymacel technology. The Dymacel technology consists a diamond shaped silicon cushioning embedded within a sole window. This is to effectively absorb shock by dispersing vertical impact energy into a horizontal plane while maximizing energy return. Dymacel maintains its memory after repeated compression.