cheap nike airmax 90 outlet online
Apollo program, scientists for the manufacture of a complete, uniform thickness, can withstand a lot of pressure in the interior space suits, a group invented the soft material is heated to soften the pressure, placed in the mold, and the mold again high-pressure gas is blown way, this is the "blow molding" technology. Later, the sports shoe manufacturer found that this process can be manufactured quickly and efficiently complete uppers, so they will be widely applied to the manufacture of sports shoes. Now nike airmax 90 sneakers are from manufacturing processes in space suits
Shoes air cushion is placed inside the shoe, in principle, according to them there is no feeling, whether in the forefoot or heel. Whether by hand or with the foot, you feel comes from hard and soft insole. That part of the insole is soft or there is a thick rubber cushioning. As for air, on the bottom inside you do not feel the (very small part of the insole cushion is placed inside, you can clearly feel). There are many air cushion to place, but no matter where to put, can not be determined by the way. General look at the appearance can be seen (even a built-in, see the appearance can see it, because there are external air, then the general structure is not the same) placed in the bottom cushion inside, because people's feet and also across the middle of a very thick cushion the distance is not so obvious natural foot feeling, but the cushioning effect is there, and the foot feels when the campaign will be more obvious. Jiaogan three cushion which is most obvious zoom air sports shoes, the sole is provided between the upper and lower part of the sole may be formed in a plurality of the gas cushion chamber, characterized in that said gas chamber (5) provided in the air intake channel (1) and outlet channels (8) consisting of ventilation devices, including air intake tract (1) vertical set in the back-end shoes, shoes from the top down and the gas chamber (5) is connected to the intake channel (1) can be set to a plurality of air intake ports provided at the upper side, the outlet opening (8) is provided in the lateral upper part of the sole (3), upper and lower, respectively, and the gas chamber with the shoe (5) communicates the outlet bore (8) can be set in rows, respectively, arranged in the upper portion of the sole (3) of the front and rear ends, said opening (1), (8) is provided with an end of the openable cover plate (2), (7).
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