I initially purchased one of these years ago to dry my car... then I used it to dry my mountain bike after rinsing it with the hose... but by far the best us I have found for this is to dry my Labrador Retriever when he finishes his hunt training!  I still carry a couple of towels in the car for dirt, but if he's mostly just wet this works far better than a towel and requires no washing afterwards.  Just keep it in the car.