NWT Crocs Stomp Puff Boot. Black. Women's 9. Men's 7. Elevate your style with this boot featuring fashionable, exaggerated chunky soles with a 5.5cm / 2.1-inch heel height. The molded Croslite™ upper ensures a lightweight yet sturdy construction. The nylon puff upper shaft, pull tabs, and adjustable toggle lacing make it easy to slip on and off.