Nicole Richie's favourite trend is the "turtleneck style".

Nicole Richie

Nicole Richie

The 35-year-old American fashion designer - who launched House of Harlow 1960 in 2009 - has admitted she is a big fan of the basic staple and considers the high-neck top a must-have garment to layer dresses or jumpsuits over for the winter months.

Speaking to Vogue.com about her wardrobe essentials, the blonde beauty said: "I like the turtleneck style and then I just layer summer dresses or even jumpsuits on top."

And the former 'Simple Life' star - who was legally adopted by the 'Hello' hitmaker Lionel Richie and his former partner Brenda Harvey when Nicole was nine years old - has revealed she loves to "pull together my inspiration and favourite looks" in one place to help her fans with fashion advice and styling tips.

She explained: "I like being able to pull together my inspiration and favourite looks all in one place for anyone who wants to replicate myself."

However, Nicole has admitted she doesn't "expect" people to be dressed "head-to-toe" in items from her label .

Speaking previously about the fashion house, Nicole said: "I design every piece thinking about what exists in people's closets already.

"This is 2016, I don't expect people to wear my brand head to toe. So I love giving girls options layering options - many different pieces they can layer with pieces that they already have."

And the television personality - who has eight-year-old daughter Harlow and seven-year-old son Sparrow with her husband Joel Madden - has revealed the inspiration behind her designs was comfort, because she "loves" wearing clothes she can move freely in.

She explained: "I love wearing a piece of clothing where I feel like I can run around at any moment and dance in it. So you know, I guess when I'm designing, I want the clothes to feel celebratory and feel very light and fun and feel like you could move seamlessly."