Description Suede & Nylon Upper: Suede leather and abrasion-resistant nylon work together to create a super durable, comfortable upper. Air Mesh Lining: Breathable, moisture-wicking air mesh lining and ventilation technology for comfort in hot weather. US ARMY Optional Wear: Meets US Army AR 670-1 requirements for optional wear. Perforated Footbed: The polyurethane footbed provides superior shock absorption while optimizing airflow and drainage. Vibram® Panama Outsole: Built with cupsole construction, the Panama outsole is designed with an omni-directional lug pattern for increased range of motion and lasting durability. Leather Rand: For increased durability, we’ve added a leather rand for protection against scuffs and abrasions on the forefoot. Opanka Stitch: The wrap-around Opanka Stitch bolsters the platform of the boot. How It Fits: The 610 is our most universal last and can be worn by all foot shapes and sizes. It provides a snug fit through the heel while allowing ample toe room for most versatile fit. This allows more support and side-to-side movement. 365-Day Warranty: If you suspect your purchase isn’t up to Danner’s unrelenting standards, or is defective in any way, Danner will make things right. We offer a 365-day warranty across our entire footwear and apparel lines.