Caitlyn Jenner was styled by Kim Kardashian West for the ESPYs on Wednesday.

Kim filmed the excited pair in their hotel room and shared the clips on her Snapchat account.

Speaking to the camera, she told her followers: "Alright guys, we're at Caitlyn's getting her ready for the ESPYs with none other than Michael Costello and he's sewing up my top."

She then picked up a slinky white dress - which is Caitlyn's favourite colour - and said: "This could be an option, but we're not sure yet. She did that last year."

The former Olympian eventually opted for a white mini-dress with long flowing sleeves teamed with jewellery by Neil Lane and diamante strap sandals.

Later, Caitlyn posted pictures of their special moment on Instagram and thanked Kim - the daughter of her ex-wife Kris Jenner - and the team behind her glamorous ensemble, including fashion designer Michael Costello, hair dresser Courtney Nanson and make-up artist Rob Scheppy.

She wrote: "Feeling great, off to the #ESPYS :) Thank you @michaelcostello for the dress and @kimkardashian for your #styling help!!! // hair @courneynansonhair / makeup @robscheppy / jewels @neillanejewlery."

Last year, Caitlyn stunned in a form-fitting white Atelier Versace gown and took to the stage to pick up her award presented by the American broadcast television network ABC.

The star - who was known as Bruce before undergoing gender reassignment surgery - used her speech to urge acceptance for others who are transgender.

She said: "This transition has been harder on me than anything I can imagine.

"Trans people deserve something vital; they deserve your respect. From that respect comes a more compassionate community. My plea for you tonight is ... join me in making this one of your issues as well. If you want to call me names, make jokes and doubt my intentions, go ahead, because the reality is I can take it. But for thousands of kids out there coming to terms with the reality of who they are, they shouldn't have to take it."

The 'I Am Cait' star acknowledged the impact her transition had on her children - including Kim and her sisters Khloe Kardashian, Kourtney Kardashian, Kendall Jenner and Kylie Jenner who were sitting in the audience, as was Caitlyn's mother Esther.

She added: "I never wanted to hurt anyone else, most of all my family and my kids."