Federer also commented on how he felt during his first round match win against the Serb Dusan Lajovic, playing as first on Centre Court: 'It was good.
Despite the separation from Nike, Federer is still wearing personalised Nike shoes that include an updated logo just for the 2018 Wimbledon Championships.
The 30-year-old Makarova took down Wozniacki 6-4, 1-6, 7-5 to bring the Danish star's tournament to a surprisingly quick conclusion.
Wozniacki, plagued by an invasion of flying ants during the Court One clash, saved five match points but has now failed to get past the last 16 in 12 visits to the All England Club. "For me, that's just who I am". The older sister, Venus, is 38. "I spent all morning with her", Williams said. If that's working for me I'm all for it.
Purav Raja and his French partner Fabrice Martin lost a hard fought five-set battle to crash out of the men's doubles competition here on Wednesday. "If that's your best or not doesn't matter".
Croatian world number 55 Donna Vekic followed up her shock success against fourth seed Sloane Stephens with a 7-5, 6-4 victory against Sweden's Rebecca Peterson.
But the American, the runner-up at Wimbledon a year ago, then won seven games in a row.
She is back at Wimbledon for the first time as a mom, but Serena Williams was in no mood for nurturing as she blasted her way into the second round.
Dutchwoman Kiki Bertens is also through with a 6-4, 6-0 result against Russian Anna Blinkova, but Poland's Agnieszka Radwanska is out following a 7-5, 6-4 loss to Czech Lucie Safarova.
The 36-year-old, whose winning run encompasses her Wimbledon titles in 2015 and 2016, missed the grass-court Grand Slam last year while she prepared to give birth to daughter Alexis Olympia in September.
Apart from adjusting to her role "as a working mom", the seven-times champion also had to get used to hearing something "new" as she was addressed as "Mrs Williams" for the first time at the grasscourt major following her marriage to Reddit co-founder Alexis Ohanian past year.