I did rent a tux on our second 7 night cruise. I followed the instructions for taking my measurements and the suit was delivered to our stateroom. It was excellent, fit beautifully and then I just left it all there when we departed.
I have since purchased a tux at Penney's for $100, which was only a little more than the rental. I use it other times during the year so it was worth the purchase. But I found the cruise rental an excellent alternative.
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