Nike Zoom Equalon + 4

Experience ultimate comfort and support with the Nike Zoom Equalon+ 4. A lightweight supportive design that offers you the support and fit without sacrificing plush cushioning and flexibility. The new Nike Zoom Equalon+ 4 delivers a new, more-snug heel strap, more durable midsole, and soft mesh upper, giving you a much better ride you always dreamed about.

MSRP : US$135
Weight : 12.0 oz / 340 gm
Predecessor : Equalon 3
Features : Gender Specific., Zoom Air®, Cushion™ ST, Dynamic Archbridge midfoot, Duralon, BRS 1000™, Waffle Fill™, TPU™, Medial Stretchable Arch Insert

Recommended for overpronator runners who needs a highly responsive and light stability shoe.

History : Equalon 4('09), Equalon 3('08), Equalon 2~1

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...

Cushlon® ST : Cradles the foot for support and cushioning that’s both plush and resilient.

Duralon : Outsole : Delivers additional cushioning to the forefoot, which then enables a smooth toe-off. It is very soft, so it might not be as durable as other outsole materials depending on the surface on which the shoes are worn. It is typically found in the forefoot area of a running shoe, so the durability doesn't affect the overall life of the shoe itself.

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 : 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.