Kristin Cavallari's most treasured wardrobe item is her wedding ring - because she throws clothes out "constantly".

Kristin Cavallari

Kristin Cavallari

The 29-year-old TV personality - who married NFL star Jay Cutler in 2013 - has a ruthless approach to keeping attire and loves to chuck her garments out if she hasn't worn them in "five minutes", so her three-year-old wedding band is the item she's had the longest.

When asked what her most treasured wardrobe item is, she said: "I'm the opposite of a hoarder, I'm constantly getting rid of stuff, so ... my wedding ring.

"It's what I've had the longest probably.

"I'm like, 'I haven't worn this in five minutes, it's out!' "

The fashion designer has three kids, sons Camden, four, and Jaxon, two, as well as daughter Saylor, 11 months, with the American footballer, and is looking forward to the day she can hand over her shoe collection to their little girl.

She added: "I'm very happy I had a girl because I have an entire shoe collection that I can now give to her.

"I have boxes and boxes and boxes of shoes in a storage room just because I've designed so many shoes down the years.

"If I didn't have a girl I don't know what I would do with all these shoes."

Despite walking red carpets for years as part of her time on 'Laguna Beach: The Real Orange County' and 'The Hills', the blonde beauty hasn't long figured out what her own style is.

She added to PEOPLE: "I've played with my style over the years ... and it wasn't until a couple of years ago that I figured out what my style was.

"Now I can easily be like, 'No, I don't want to wear that. Yes, I want to wear that.'

"I'd say it's pretty effortless, minimalist, classic maybe."