This year Head reinvents their SPEED line by integrating the new Graphene 360+ technology and updating specs that will revolutionize your SPEED! it features the new Graphene 360+ technology, a combination of Graphene 360's energy transfer and innovative spiralfibers for an enhanced flex and clean impact feel. It also features an innovative superactive stringbed with widened cross strings in a 16x19 string pattern that will give you a higher amount of spin potential and a higher trajectory to achieve more depth during those fast rallies.