The pants are named for the group of islands off the southern tip of
South America, the treacherous Cape Horn. Tierra del Fuego (TDF) is
Spanish for “Land of Fire,” all things indicating that these pants
have a flair for the adventurous. These pants are designed to do
double-duty and can be worn in place of jeans or over jeans... For a
complete review visit http://www.allaboutbikes.com/index.php/products/gear/835-roadgear-tierra-del-fuego