Sydney Sweeney wanted to make lingerie which "everyone feels really good in"

She told Cosmopolitan magazine: "My designers are all women, and I have an amazing diverse team. My models are a beautiful range of body types. I'm always like: 'I want to see it on every body.' I can't be the only model. I need to make sure everyone feels really good in it ...

"If I wouldn't wear it, I wouldn't want to make it."

She went on to explain she brought along an old bra to a team meeting to emphasise the importance of creating the perfect fit.

Sydney added: "In sixth grade, I was a 32 DD, and I remember going to the store to get my first wire bra. It was silk and the only bra I felt good in.

"I literally wore it to the point that it had holes in it. I brought it into my SYRN office and was like: 'This is how much this bra has meant to me.'

"It has stood by my side my entire life. I want to make bras that stay with women. And it's really difficult finding things that support you but don't ride up your back."

The actress added she hated being criticised for wearing an ill-fitting bikini in her Netflix movie Anyone But You and she doesn't want other women to feel that way.

She explained: "I got slammed for what I wore in Anyone But You ... Everyone was dragging me and I'm like: 'Guys. When you have boobs that are heavy and not fake, if your top doesn't fit perfectly, it's going to ride up' ...

"I feel like I've had to explain how boobs work for forever now. I've dealt with this my entire life. I don't ever want a girl to feel like I did after everyone came at me for a fit I had no control over."

SYRN aims to rival Kim Kardashian's Skims and Rihanna's Savage x Fenty. It comes in 44 sizes and is split into four modes: Comfy, Playful, Romantic, Seductress.

Launching the brand, the actress explained: "The secret is finally out?...?this is lingerie you wear for YOU, no explanation, no apology. I wanted to create a place where women can move between all the different versions of who we are.

"I love working on cars, I go water skiing, I'll dress up for the red carpet then go home to snuggle my dogs. I'm not one thing, no woman is."