Ahead of the weekend, Hamilton announced he would again drive in the rainbow helmet he debuted at the last race in Qatar.
Vettel, too, wore his rainbow shoes when facing the media, while Schumacher was dressed in a shirt featuring the silhouette of his face on a rainbow background.
"It's fantastic to see an increasing number of drivers showing their support for the #LGBTQ+ community," wrote Racing Pride on Twitter.
"Thank you Mick Schumacher for wearing a pride bracelet at the Saudi Arabian GP. This is a lovely gesture of solidarity that is very much appreciated."
On Vettel's display, Racing Pride added on Instagram: "Sebastian Vettel is again sporting these fantastic shoes at the Saudi Arabian GP in support of the LGBTQ+ community."
When Hamilton first unveiled his special helmet, one that will be seen at each of the final two weekends of the year, Racing Pride lauded the design as a "powerful gesture".
"We applaud Lewis Hamilton for adding the progress pride flag to his helmet," the group remarked.
"It is a magnificent and powerful gesture of solidarity with our #LGBTQ+ community around the world, made particularly impactful by the discrimination faced by the community in the MENA region, and is very much appreciated.
"Thank you, Lewis, for this great act of allyship."
Vettel supporting women in racing
Women were banned from driving in Saudi Arabia until a law change was implemented in 2018.
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