The color matching is also crystal bottom, this pair of rubber bottom is what I have been looking forward to, These days, I have hit the wooden floor and the rubber floor. On the whole, the rubber floor is hit. The rubber sole has better grip and is more durable, and the previous environmentally friendly color scheme absorbs gray. The movement is crisp and crisp, the bag is breathable enough, and the foot shape matches well. Tall, I wore a size 42.5 in the environmentally friendly color scheme before I was wide-footed. Very nice pair! i really love it. highly recommend.