Kick it into high gear with the isoShft from Pearl Izumi. Through a streamlined design, the isoShift delivers a smooth ride and feels lighter on the foot than it actually is. The isoShift offers runners a moderate amount of pronation control with plenty of cushioning for any distance and the seamless upper provides a comfortable environment for the foot. Add in a great amount of reflectivity and you have one great training shoe.

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Weight: 10.7 oz (size 8)

Stack Height: Heel (30mm), Forefoot (19mm)

How It Fits (based on width B) Width B=Medium

Sizing: Standard running shoe length
Heel: Medium
Midfoot: Medium volume
Forefoot: Medium
Toe-Box height: Medium-low
Arch Structure: Medium height

Product Lifecycle

Release date: July 2011 (new color), model release date September 2010
Model discontinued: Unknown
Heritage: syncroInfinity

INTRODUCTION

The isoShift is a maximum feature, moderate support shoe designed for daily training and high mileage. It is built with a semi-curved shape.

CUSHIONING

1:1 Energy heel crash pad is located in the heel for added protection and increased energy return.
1:1 Energy Cell is located in the forefoot and is a responsive cushioning device that is designed for increased energy return.

MIDSOLE

EVA is an industry standard thermoplastic designed to provide durable cushioning.
1:1 Graduated Guidance System is positioned from the heel to forefoot and is designed with a graduated foam density to offer pronation control with smooth heel to toe transition.
TPU Bridge is located at the bottom of the midfoot and is a thermoplastic unit intended to maintain forefoot and rearfoot torsional integrity.

UPPER

1:1 Seamless Race Upper is designed to reduce irritation and improve next-to-foot comfort.
1:1 Lacing consists of internal overlays specifically placed at the midfoot to keep the upper snug to the foot.
EVA Insole is a dual density material engineered for arch support and step in cushion.
Traditional Last construction is a full length strobel last

OUTSOLE

Carbon Rubber is located throughout the outsole for increased durability.

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