The basic unit in technology is not the bit, but the body.
The new Air Max2
shoe’s dual air pressure technology modifies the ride so
it matches the movement and impact of the foot.
Kevin Young, track and field athlete, wears the Air Max2 running shoe from Nike
Five psi (at inflation), lower density air is located at the center of the heel Air-Sole unit.
This “softer” air makes for maximum shock absorption Higher density, 25 psi (at inflation) air located on either side of the heel provides firmness and stability.
The “air” used is actually a gas that won’t deflate over the
lifetime of the shoe.
A forefoot Air-Sole unit provides extra cushioning.
sauce: Popular Mechanics 1994