The nike free run womens shoes & nike free 3.0 v2 use a large air cushioning unit at the heel which is visible from the side of the midsole in most models. nike free 3.0 v2 men, nike free 3.0 v2 women
The nike free run mens & nike free 3.0 v3 will feature a one piece mesh upper with dynamic midfoot strap and lacing system for proper adjustment. cheap nike free 3.0 v3 men, nike free 3.0 v3 women
You seem like a cool person...I hope you stick around.