ALL-DAY COMFORT. Take on daily challenges with Nike Defy All Day. The leather material extending from the upper part to the lower part and the rubber grip feature at the bottom create a durable and solid design that can withstand all the difficulties of intense training sets. Soft cushioning provides comfort throughout your workout or while running errands. The tough leather material on the upper ensures durability against all the rigors of your workout. Built-in breathability helps keep your feet cool.; Foam cushioning, soft sockliner and padded collar; Provides comfort where necessary, in, outside and near the training area.; Rubber texture provides long-term grip on many surfaces. The grooves under the foot allow the sole of the foot to flex, giving the feet natural mobility.