Kim Kardashian says her style is more ''effortless'' since becoming a mother.

The reality TV star - who has a fourth-month-old daughter North with her fiance Kanye West - admits she often opts for more comfortable clothing since giving birth to her first child, but she still likes to vary her garment choices.

She exclusively told BANG Showbiz: ''I would definitely say my style has changed since I've become a mother. At times you just want to be comfortable so I'm a little bit more effortless because I just don't have time to get it all together.

''I'm wearing a softer colour palette now. It was all white and black outfits when I was pregnant. I still wear black but I mix it up.''

As well as looking after North, the 33-year-old beauty has also been busy working alongside her sisters Kourtney and Khloe Kardashian on a new 25-piece Kardashian Kollection Jewellery range, and the blonde star admits the trio feel much more experienced about the industry nowadays.

She added: ''I don't think anyone in particular inspires us. Kourtney, Khloe and I get inspiration from each other and from all of our travels.

''I think it helps we have our own clothing store that we do the buying for so we get to meet tons of other designers. We order months in advance so we have the advantage that we can design cool, classic pieces and things we don't see out there in the marketplace.''

Argos will exclusively stock the full 25-piece Kardashian Kollection Jewellery range from Monday November 11.