Men's Carolina Boots CA7528 Comp Toe Waterproof Work Boots The perfect combination of safety and comfort is here with the Carolina® Boots CA7528. These durable work boots have a lightweight, non-metallic composite toe for solid protection. The upper is coated in a waterproof layer, which combines with the breathable mesh boot lining to keep your foot dry. The removable AG7™ polyurethane footbed allows you to customize your comfort by inserting your own insoles.