S3, S, SR, FO. DeWalt Kirksville is a water-resistant, lightweight hiker style work boot. The Kirksville is manufactured with an aluminum toe cap and composite midsole. It has a TPU toe guard for extra protection, and a TPU heel piece for ankle support. The tongue and collar are both padded. The boot boasts a lightweight Phylon/Rubber Pro-Lite outsole which is tested for resistance to fuel oil, and is also certified to the best slip rating. Equipped with the DeWalt Pro Comfort insole, with built in arch support, the boot delivers all day comfort.