Caitlyn Jenner Thanks Stepdaughter Kim Kardashian West for ESPY Prep Help

— -- At the 2015 ESPYs, Caitlyn Jenner wowed the crowd with a powerful acceptance speech for the Arthur Ashe Courage Award in a white, floor-length dress.

Last night, she wowed again, but this time her outfit did all the talking. Jenner stepped onto the red carpet in another stunning white dress -- this year, showing a little more skin in a custom Michael Costello piece.

The white off-the-shoulder dress hit just above the knee, with long cape-like sleeves that draped down to the floor.

Feeling glamorous and ready to go, Jenner, 66, first snapped a quick picture and gave credit where credit was due -- to her stylist and stepdaughter, Kim Kardashian West.

“Feeling great, off to the #ESPYS :) Thank you @michaelcostello for the dress and @kimkardashian for your #styling help!!! // hair @courneynansonhair / makeup @robscheppy / jewels @neillanejewlery,” she captioned an Instagram before the big night out.

The prepping and primping process was also documented on Kardashian West’s Snapchat.

Jenner posted a few more pictures throughout the night as well.

She even cracked a joke after posing with Shaquille O'Neal...

... And gave a shout out to the man of the evening, Peyton Manning.