Marks & Spencer is rolling out a 150-piece sportswear collection today in a bid to cash in on the booming athleisure market.

The department store retailer has launched its new ‘Goodmove’ womenswear range today across stores and online, The Guardian first reported.

M&S’ latest collection will comprise a range of items but focus primarily on leggings. Leggings ‘experts’ will be available in-store to help shoppers find the right pair for them, with the range spanning from £15 for a basic pair to £45 for sculpting tights.

M&S currently sells one out of every four sports bras sold in the UK and sees scope to expand its reach into the athleisure market, particularly as shoppers are increasingly purchasing items for fashion as much as exercise.

Womenswear director Jill Stanton said: “Activewear has become a staple in today’s wardrobe – not simply because we work out more, but because the nation is embracing a more casual and flexible way of dressing.”

The range is the latest move by Marks & Spencer to revive its flagging fashion sales. The retailer, which will update on Christmas trading next week, poached Tesco’s head of clothing and homewares Richard Price to lead its clothing division with a focus on winning spend from younger families and shoppers.