This beautiful blue summer dress from Marks and Spencer is a must-have addition to your wardrobe. The pencil dress style is perfect for a beach-themed occasion or a summer day out. The dress is a size 12 and is suitable for regular size types. The dress length is long, making it appropriate for formal occasions as well. The dress comes in a stunning blue colour that is perfect for the summer season. It is made of high-quality materials that ensure comfort and durability. The dress is ideal for women who want to look stylish and elegant.