Microfiber Sheep Dawgs are made of a special ultra fine Microfiber. Sheep Dawgs microfiber boots' filament is very fine, strong and is virtually lint-free. Microfiber can be 200 times finer than a human hair, which is the secret of Sheep Dawgs incredible micro fiber fit and finish. The boots' microscopic open spaces between the fibers hold air that provides fantastic insulation for cooler temperatures, while maintaining premium comfort on warmer days as well!. These same spaces in Sheep Dawgs microfiber footwear allow for quick drying times if you get them wet, and helps to eliminate any bacterial growth. Sheep Dawgs micro fiber boots provide high quality, fantastic fashion and unbeatable value!.