Mike Thompson, an amateur outdoorsman, planned a trip to hike up to Machu Picchu, a city at the top of the Andes Mountains in Peru. Realizing that his current hiking gear was inadequate for the trip, he went to REI, an outdoor sporting goods store. He explained to the salesperson at REI that he needed hiking boots that could withstand the rough terrain and clothes that would allow him to hike in 15 degree (Farenheit) weather. Excited and eager, Mike set off for his trip. However, during his first day of his hike, the soles of the boots detached from the leather and he was forced to hike back to camp and cancel the rest of his trip. When he got back into town, Mike consulted an attorney. Is REI liable to Mike? If so, on what basis?