It's a family affair in the just-in trailer for Caitlyn Jenner's new E! documentary series, I Am Cait.

The second teaser packs a lot into its 30 seconds, including commentary from Caitlyn's mum Esther Jenner ('You know, I've gained'), and some sweet scenes with Kylie - including one where it turns out that Caitlyn and Kris have the same taste in dresses...

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The series premieres July 26 at 9 pm.

From the editors of ELLE.com.

From: ELLE US