Spade Flower Quilted Fabric Convertible Backpack | Kate Spade BE。Kate Spade Signature Spade Flower Medium Backpack. This Kate Spade backpack features a beautiful spade flower pattern on a navy blue coated canvas exterior. The bag has an adjustable strap for comfortable wear and a zip closure to keep your belongings secure. It measures 9 3/4\" in width, 12 3/4\" in height, and 5.5\" in depth, making it a perfect medium-sized bag. The backpack also has leather details that add a touch of elegance to the design. Ideal for women who love flower-themed accessories, this bag is perfect for any occasion.