Caterpillar Ally - Women's Brown Composite Toe Waterproof Work Boot. Caterpillar Ally - Women's Brown Composite Toe Waterproof Work Boot . You deserve to be comfortable during yCaterpillar's long workday, which is why we created Caterpillar's new Ease - Engineered Comfort. A foam midsole, Ease is a propriety EVA giving you the best in comfort and durability. And if that wasn't enough we also loaded this boot with Caterpillar's new Nano Technology. Say goodbye to a bulbous toe, the new Ally 6inch WP work boot also gives you a slimming look with the ultimate in protection. Step into the Ally 6inch WP and experience the Power of Comfort. Women's