The Gel Quantum 360 is built with plenty of cushioning underfoot and comfortable from top to bottom.It is all about cushioning and comfort with a full-length GEL midsole which provided smooth ground contact during each run without being too springy.It includes the ASICS FluidFit seamless upper which is comprised of a lightweight synthetic and mesh material.The use of a Solyte midsole which sits between new GEL midsole and upper allowes to have more responsive feel underfoot.The sole unit of the Quantum 360 is what sets it apart from all the other ASICS models.