Now that we're slowly (but surely) edging our way out of winter and into spring - we are, unbelievably, facing temperatures of 17°C this week - there's one style staple I'm keeping my eyes peeled for on the high street, and that's a denim dress.

The perfect problem solving staple that remains insulating enough for the transitional months without skimping on style, a denim dress is the key piece to update any wardrobe, and I've spotted a rather brilliant true blue frock from Marks and Spencer. To my surprise, it's still in stock. But not for long - let me explain why.

marks and spencer
Marks and Spencer

Courtesy of its smart shirt collar, button-up detailing and carefully constructed shirt style hem, the M&S Pure Cotton Denim Midi Shirt Dress is the ultimate chic style set to dominate wardrobes once the mercury begins to rise. The genius? It's crafted from denim thick enough to provide you with insulation yet lightweight enough that it won't feel stuffy when layered with tights and other cold-curbing staples.

M&S Pure Cotton Denim Midi Shirt Dress

Pure Cotton Denim Midi Shirt Dress

M&S Pure Cotton Denim Midi Shirt Dress

Credit: M&S

Of course, its transitional season appeal isn't the only reason why well-dressed women are flocking to shop the swishy staple. As per Marks and Spencer's typically brilliant design protocol, the denim dress comes with incredibly flattering details, including 3/4 length sleeves for a boost of confidence, and an adjustable waist courtesy of a self-tying belt, which will cinch with ease when pulled in.

details
M&S

Aesthetically, the dress speaks for itself, meaning there's no need for clever styling tactics when it comes to curating an outfit formula. Wear with classic black or brown tights and ankle boots for social gatherings, not forgetting a stylish leather jacket for an ageless touch. Once the weather becomes warmer, shed the tights and wear with a pair of sneakerina shoes for a day-to-day look that will suit everybody.

Available in sizes 6-18, the Marks and Spencer dress also comes in a generous range of body lengths, from petite, to regular and tall. But snap it up sooner rather than later, as we predict this dress will sell out in a matter of days.