Sadie Frost rocks quirky yellow shorts and workout gear as she launches her new ...

She's an actress, a designer and a busy mother-of-four.

But Sadie Frost showed no signs of slowing down when she appeared in a quirky ensemble for the launch of her new yoga range on Monday.

The 53-year-old was dressed in mustard yellow and black workout gear as she introduced the line, Frost, at the Ecofetes Studio in London.

Colourful: Sadie Frost showed no signs of slowing down when she appeared in a quirky ensemble for the launch of her new yoga range on Monday

Colourful: Sadie Frost showed no signs of slowing down when she appeared in a quirky ensemble for the launch of her new yoga range on Monday

She posed in a black hoodie with a netted front pocket and a vibrant yellow drawstring as she greeted guests at the event.

The Dracula star, who has three children with actor Jude Law, paired the sweatshirt with matching yellow shorts worn over the top of cropped leggings.

Sadie completed her outfit with a pair of white trainers and her signature brunette bob. 

Work out: The 53-year-old was dressed in mustard yellow and black workout gear as she introduced the line, Frost, at the Ecofetes Studio in London

Work out: The 53-year-old was dressed in mustard yellow and black workout gear as she introduced the line, Frost, at the Ecofetes Studio in London

Bold: She posed in a black hoodie with a netted front pocket and a vibrant yellow drawstring as she greeted guests at the event

Bold: She posed in a black hoodie with a netted front pocket and a vibrant yellow drawstring as she greeted guests at the event

Frost, which is set for launch on June 1, was designed by Sadie and inspired by her own love of yoga.

Guests at the event, including model Portia Freeman and actress Holly Davidson, enjoyed a range of vegan snacks and beetroot shots as they celebrated the launch.

Sadie's new venture comes after the mother admitted she was 'ready' for her children to move out of the family home last month.

PREV Designer dresses, French champagne and a $21m mansion: Inside Australia's ... trends now
NEXT Coronation Street's Brooke Vincent breaks down in tears as she experiences 'mum ... trends now