A brand of waterproof footwear (i.e., rubber boots). XtraTuf boots are made of neoprene and generally rise up to the mid-calf level of the leg (though they also make clog-style neoprene shoes, and probably hip waders as well). Because they are supposed to be very durable compared to other rubber boots (hence the name), XtraTufs are considered essential for intense outdoor activity in wet climates/terrain. Common uses include fishing, boating, clam-digging (et cetera, et cetera); as well as hiking and hunting-related activities in wet areas of the world. In really wet areas of the world (Prince Rupert, BC and Ketchikan, AK come to mind), they are a popular choice of footwear to use for walking down the street.