Nike Air Structure Triax + 12

The Nike Air Zoom Structure Triax+ 12 running shoe is built upon a proven platform of support with Nike Zoom Air, a superb mix of stability, and flexibility. Enjoy the same great fit in this update with fewer overlays for gender specific comfort. A great stability shoe designed for mild to moderate over-pronation.

MSRP : US$100
Weight : 12 oz / 340 gm
Predecessor : Structure Triax 11
Features : Gender Specific, Air-Sole®, Zoom® Air, BRS 1000™, Duralon™, Waffle Fill™, Dual-density Phylon, Footbridge, Phylon crash pad, Full-length Phylon strobel last, Full-length Phylon, Nike Rideliner PU footbed

Recommended for the runner that looks for a shoe to control his overpronation and seeks high end comfort and cushioning.

History : Structure Triax 12 ('09), Structure Triax 11 ('08), Structure Triax 10~1

Air-Sole® : Those little bags are based on the following formula: Cu=U+CG (Cushioning equals urethane bags filled with compressed gas). Maybe it's not E=MC², but it will do more for your feet than Einstein ever did. It says that because the gas molecules are larger than the pores in the urethane membrane, air can't escape. The result is our light, protective cushioning.

Arch bridge : A gender-specific midfoot component helps smooth the transition through propulsion.

BRS 1000™ : A highly durable carbon rubber we invented for use in outsoles. BRS stands for Blue Ribbon Sports, which was our name before we came up with Nike. The tie-in? Both BRS and Nike last ... and last...

High-density foam : Medial post along the moodfoot and heel helps add support and helps prevent overpronation.

Phylon : Originally used in dolls, it is a heated and compressed EVA foam cushioning compound that is light, resilient and capable of giving a soft, smooth ride. As a bonus, it is non-yellowing and impervious to attack from water and microbials.

Nike + : A pocket under the sockliner for secure placement of Nike+ sensor. Connected to iPod nano, information on time, distance, calories burned and pace is stored on iPod and displayed on the screen; real-time audible feedback also is provided through headphones.

TPU : Thermoplastic Urethane : It can be fine-tuned for optimal stiffness and is used to make stabilizing plates.

Waffle Fill™ : Rubber compound outsole for enhanced traction.

Zoom Air® : Cushioning system : Two layers of nylon fabric, joined by densely packed fibers, are sealed inside polyurethane. The unit is inflated; pushing apart the fabric and creating tension on the fibers. What does that mean? I don't know, but the result is a low-to-the-ground, hyper-responsive speed cushioning you can feel. And it does it in less space than other Air-Sole units.