The Footwear Fallacy posits that one must have a change of shoes for every possible activity. As with all fallacies, it rests on a certain reasonable logic. Climbing boots such as the type worn to ascend Mount Rainier, for instance, likely are not appropriate for, say, road biking in the Sonoma Valley. But that’s because those activities are nearly polar opposites. “Hiking on a trail” and “hiking in the wilderness” are really not that different at all. Hence, one does not need two pairs of footwear for these activities. One will do nicely.