Bum bag by Spiral, Holographic finish, When one colour just won't do, Branded lining, Adjustable body strap, Secure clasp fastening, Embroidered logo patch to front, Zip closure, External pocket to back. Bored with the basic backpack, Spiral's bags pack a punch with bold, striking designs. Tough and durable design meets trend-led prints across their colour-block styles and signature printed backpacks, which conceal all those handy necessary compartments too.