Discover our range of ladies' plus size day dresses at Bonmarché. Our styles are ideal for all sorts of occasions. Whether you're looking for work wear or something for the weekend, our collection of women's plus size casual dresses and day dresses has got you covered. Explore our range of day dresses and find the perfect one for you. Browse a variety of styles from florals to prints and check dresses. Available in sizes 18-28.