Comfort and performance rolled in one, the Caterpillar Superstat Waterproof Nano Toe Work Boot is a must-have at the job site. Featuring the EASE cushioning system, this lightweight lace-up boot provides shock absorption and comfort. Also, the composite toe with Nano Toe technology is 40% lighter than steel, and lends ample protection. EASE cushioning system Waterproof construction Composite toe with Nano Toe technology Rated ASTM F2413-11 Durable T1230 outsole.