I love how an iPhone was deemed more essential than a change of clothes.
The only problem is what to wear while washing stuff, and of course the fact that you need to handle this quite often if you only travel with one set. This is why I always travel with one or two changes in my backpack.
some people sharing transport with you may disagree.
It fullfills all the functions advertised for the towel, but is far better at the critical ones (for earth-confined travel), such as doubling as clothes and a scarf, and it's far better as a rope than a normal towel.