Durable Toe and Heel Box.
Lightweight EVA Midsole Construction.Allen Granite River Men's Felt Sole Wading Boots, Grey, 9 With a lightweight EVA midsole construction, these boots also have a padded tongue and collar and a pull-on heel strap. Felt Sole for Increased Traction. Built on a wide last (shape of the inside of the boot), these boots have a speed laced upper for quick on and off and a premium, durable toe and heel box.