Carolina CA8528 Men's Composite Toe Work Boot. Be protected and comfortable with the Carolina CA8528 work boot. A nylon mesh fabric lining allows air to circulate around your foot. The AG7 footbeds were made with shock-resistant polyurethane, so the impact of every step will be comfortably absorbed. ANSI/ASTM I75 & C75 Approved. Carolina Men's Distressed Brown Waterproof Round Composite Toe Lace Up Work Boot