I bought large cooling pad for my beagle.  He has extra hair and tends to overheated and this cooling pad had been his lifesaver.  We have 4 dogs and he is the only one who uses it, but he just loves it.  He gets great nap time even it is a very hot day.  Very easy to use and it takes a while to drain all water because it has foam inside, but just hang on the laundry line.  It is not hard to drain.  We took this cooling pad everywhere, camping, living room, bed room and car rides.  He has used it for 3 years and it finally started leaking a little and I have just gotten another one.   This time I got extra large.  It is heavy, but this is an excellent product.  This product has really kept my beagle's summer days very pleasant.
Thank you!!