Newton Isaac

The Sir/Lady Isaac is a neutral guidance trainer is designed to help runners in making a better transition to a more efficient midfoot/forefoot (A shorter steps but faster stride, which sometimes is being refer to Barefoot running) running technique. The Isaac has a breathable closed mesh upper, beefed up for durability, including a hard plastic protective covering on the midfoot and a more durable outsole rubber.

MSRP : US$149
Weight : 10.9 oz / 300 gm
Predecessor : Nil
Features : High rebound EVA, Beveled Heel Toes Lugs, Wider Midfoot/Forefoot and Lugs, Midfoot Chassis/Shank, Enhanced Sockliner, Carbon Rubber Outersole

Neutral guidance trainer for runners committed to improving their running form to the more efficient midfoot/forefoot running style.

History : Isaac('09)

Action/Raction Technology™ : When using the ultra-efficient Land-Lever-Lift midfoot or forefoot running gait, the technology absorbs and then returns your own energy back to you. It's not fancy technospeak, and it's no gimmick. It's a revolutionary way of building a running shoe based on Sir Isaac Newton's third law of motion – "For every ACTION, there is an equal and opposite REACTION." Loosely translated, it means you get a boost of forward energy with every single stride you take.

Beveled Heel and Toe : Helps guide runner easily into the midfoot/forefoot.

Beveled Lugs : Smoother, stable feel that is more gradual in the forefoot.

Carbon Rubber Outersole : Increases durability.

EVA : Single-density, high rebound EVA that stabilizes all foot types.

Wider midfoot/forefoot/Lugs : Adds stability and creates a softer feel.