Caterpillar-Streamline 2.0 Work Shoe - Men's Perform better with the Caterpillar Streamline 2.0 Composite Toe work shoe. A full-grain leather upper, impact-shielding composite toe and airy mesh socklining with Cleansport NXT pro-biotic odor control make this lace-up highly comfortable. Plus, an Astm F2413-18 Electrical Hazard protection and SRX base with abrasion, water and oil resistance keep you safely moving.