The standard Transition Wrap is a car seat cover that also doubles as a changing towel. Car seat covers are great, but pairing the dual purpose of a changing towel makes this one of the most useful pieces of kit in our vehicle anytime! The regular version is not a waterproof towel but a great seat cover as is. It works for most, but if you're a sweaty mess post workout checkout the Transition Wrap Extreme which is a totally waterproof car seat cover!