With Lowered Midsole Heights, Articulated Chevron Design, And Flex Grooves In The Forefoot, IGNITE Dual Offers A Combination Of Energy Return And Flexibility. A Fully Knitted Upper Is Engineered To Provide Flex Zones In The Forefoot And Support Through The Side Panels. This Unique Upper Delivers A Sock-like Fit With Breathability For Maximum Comfort.