Saucony Men's ProGrid Guide 2 Running Shoe Leather Heel ProGrid with Respon-Tek - This is Saucony's latest impact deflection technology. Hee Dual Density Impulse EVA - An advanced EVA blend that maximizes rebound and durability whi HRC Strobel Board - increases comfort and cushioning in landing and take off. Ortholite Sockliner - Breathable, moisture wicking, anti-odor and anti microbial Ortholite SRC Impact Zone and SRC Xtra Forefoot Cushioning - Provides shock absorption and sets the