The M&S £30 trapeze dress is a chic, affordable throw-on style that looks designer, but it's selling out fast. This dress, with its exaggerated A-line silhouette, creates a triangular shape that flatters any figure. It's perfect for the heatwave, looking just as cool at the beach as it does dressed up for dinner. The Pure Cotton Volume Bandeau Maxi Beach Dress is a steal at £30, with a bandeau neckline and soft pleating that makes it look much more expensive. It's a versatile piece that can be dressed up or down, from a fancy soiree to the school run. The dress is available in a luxurious red hue, which is a key trend for spring-summer 2026, as highlighted by M&S's Senior Fashion Editor, Jodie. This trend, which she calls 'colour-coded' dressing, involves pairing unexpected combinations of bright colours with a neutral element to keep it elevated. The red trapeze dress is a perfect example of this trend, and it's no wonder it's selling like hotcakes. However, it's already sold out in certain sizes, so act fast if you want to get your hands on this stylish piece.