Danner releases 60th Anniversary editions of Tanicus and 。Horween Leather Chromexcel leather is produced in the U.S. using time-honored techniques and formulas that were developed nearly 100 years ago. Chromexcel is comfortable, durable and develops a beautiful worn-in look over time. This natural leather treatment provides a slightly unique aesthetic for each hide, which may result in some variation amongst pairs of boots. On any boot that uses Horween Chromexcel leathers, you may see a slight amount of blooming, which is a natural characteristic of that type of leather. Retro One Piece Leather Upper Our one-piece leather design eliminates openings in the tongue area to help keep out debris and water. It also creates a simple finish with minimal seams. GORE-TEX 100% waterproof and breathable, GORE-TEX liners ensure that no water gets in, while allowing sweat and moisture to get out. Removable Airthotic Foam Footbed Inspired by Danner\'s original Airthotic instep cup, the new updated Ortholite® Airthotic features the same support as the original but with long-lasting Ortholite® cushion. Machine washable and antimicrobial. Vibram® Kletterlift Outsole with Megagrip Specifically designed for comfort and durability; the heel provides superb shock absorption and the Vibram® Megagrip compound guarantees great traction and stability on both wet and dry surfaces. Stitchdown Construction Handcrafted to provide a wider platform, our legendary stitchdown construction offers increased stability underfoot..