The Newton Isaac Neutral Guidance Shoe is the newest addition to the Newton family featuring intelligent control for all foot types with a bevelled heel and toe that helps guide runners easily into the midfoot/forefoot.The bevelled Lugs offer a smoother, stable feel that is more gradual in the forefoot whilst the wider midfoot/forefoot and lugs add stability and create a softer feel. The Midfoot shank adds support and stability with a carbon rubber outsole for increased durability. The closed mesh on the upper keeps small debris out allowing you to run trouble free on trails.The upper is packed with features for high performance including highly breathable, fast-drying, closed mesh, slip-proof laces with heel-securing double eyelets, lightweight ergonomic support strapping, metatarsal stretch panels and a reflective logo and heel tab.The midsole is constructed for pure comfort fuse with the ultimate in guidance with a single-density, high rebound EVA that stabilizes all foot types, second generation Action/Reaction Technologyââ??¢ forefoot and heel, Midfoot/rearfoot support chassis for added stability, bevelled heel and toe, Met-flex enhanced forefoot flexibility, enhanced sock-liner that increases energy return and protection and it accommodates orthotics.Outsole utilises a second generation durable, high traction actuator lugs, increased toe spring, pronounced heel rocker and high-wear carbon rubber with traction tread.Please note: For new customers, our shoes tend to fit smaller than many common running shoes.