I got a pair of trail running shoes that I have been using for 6 months. My shoes usually hold up for much longer than that. This one however, is worn out on the side where the foot bends, at the ball of the foot. The left shoe now has a clear hole there. On the right one, the fabric has become kind of thin at the same spot, but there is not a tear yet. Does this fall under the warranty or will they just think I have torn it in some accident?