Federer, 36, whisked off his t-shirt at the end of the first set which was met with huge cheers and whistles from the SW19 crowd.
Off came the UNIQLO top and on went a new one - but the outfit change could hardly have been down to sweat.
Federer was not messing around as he stormed past Lukas Lacko in just 89 minutes.
He broke once in the first set before winning all 20 of his service points in the second to go 6-4 6-4 ahead.
The run of points won on serve reached 35 as the 20-time Grand Slam champion stormed the final set 6-1.