Reebok - Premier Walk FSM (White/Silver/Black/Ion) - Men's: DMX foam for cushioning. Wider medial base provides incremental support throughout walking stride. Beveled heel construction for an enhanced walking stride. opti-Flex Zone for forefoot flexibility. Transition Bridge aids heel-to-toe transition. Medial TPU post for stability. Removable EVA sockliner accommodates orthotics. Synthetic/mesh upper for comfort. fit, and durability. Reflective material for night safety.