STRENGTH AND STABILITY FOR ELITE-LEVEL TRAINING. Designed for strength and stability, the Nike Romaleos 4 features a supportive midsole and a wide, flat outsole. Adjustable straps at the midfoot secure your foot during your most intense workouts. Total Lockdown - Wide straps over the laces adjust to deliver secure support. Explosive Liftoff - Rigid midsole with a heel lift enables optimal power transfer from the ground to support explosive movements. Sturdy Platform - A wide heel creates a stable base for heavy lifts, while rubber tread provides durable traction to meet the demands of your sport.