The 21-year-old shared a short video with fans via her Instagram stories on Sunday evening.
In the clip, the lip gloss mogul shows off a pair of fluffy slides that feature the colours of the transgender flag.
“I need all the colours,” she captioned the video.
Caitlyn, formerly Bruce Jenner, went public with her transition in April 2015 with an interview with Diane Sawyer and later appearing on the cover of Vanity Fair.
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However, while Kylie, 21, is showing Caitlyn, 69, support, one of the former Olympian’s other children slammed the LGBTQ advocate earlier this month.
During a recent episode of The Hills: New Beginnings, Brody Jenner – who is Caitlyn’s son from his previous marriage to Linda Thompson – revealed that he grew to “not expect too much” from his dad because he was “just never really around.”
Caitlyn is father to Kylie and her older sister, Kendall, 23, from his marriage to Kris Jenner. She is also stepfather to Kris’ children Kourtney, 40, Kim, 38, Khloe, 35 and Rob, 32, from her first marriage to high-profile attorney Robert Kardashian.
She also fathered Brody’s brother, Brandon, 36 with wife Linda, and Burt, 39 and Cassandra, 37 from his marriage to Chrystie Jenner.
This article originally appeared on WHO.