Ashley Graham celebrated her 30th birthday with her girls in Costa Rica and launched the new Essentials collection. (Pic: Instagram)

Ashley Graham designed her new swim line to make women feel "confident and sexy", and she wants to "inspire" women to embrace their body shape with her creations.

The brunette beauty has teamed up with Swimsuits For All to launch her Essentials collection, and the 300-year-old model has revealed she created the range to "inspire" women to feel confident with their body, regardless of what size they are.

S Q U A D U P - all wearing the ‘VIP’ suit from my essentials line with @swimsuitsforall #agdirty30

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Speaking to ElleUK.com about her latest venture, the catwalk icon said: "I wanted to offer a range of swimsuit styles that make all women feel confident and sexy. Some traditional brands assume girls with bigger hips, breasts and thighs want to cover up, but I know that's not the case. After my Swimsuits For All #CurvesinBikinis campaign had such a positive response from people everywhere, we knew we had to collaborate on a line to inspire women beyond body positive advertisements.

Me👸🏻 #sorrynotsorry

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"You have to let go of all the silly thoughts like "my cellulite is showing" and realise that everyone has insecurities. The first step to getting over them is taking off that cover up and owning it."

And Ashley - who is married to Justin Ervin - has admitted if she could give her younger self a piece of advice it would be to stay determined and continue to "make history". 

Asked about the words of wisdom she would pass on to her younger self, she said: "Don't take no for an answer. Keep up the hard work, you're making history, girl."

However, the fashion icon cannot believe she has already hit the milestone, but since turning 30 she has become even more determined to "conquer" the fashion business and pursue other projects.

Never not working @swimsuitsforall #agdirty30 @mrjustinervin📸

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She said: "It's funny because sometimes I think, 'wait, I'm not already 30?' because I've been working since I was 15. 30 is a whole new decade that I can conquer, and if it's anything like my 20s, it's going to be epic! I love the woman I've become and look forward to inspiring women of all ages for many years to come."