Lenovo offers its Lenovo 15.6" Toploader Notebook Case, model no. 78Y7332, for $13.49. With free shipping, that's the lowest total price we could find, this time by $18. (It was $1 less last week, since expired.) Sales tax is added where applicable. This top-loading case accommodates most 15.6" laptops and features a shoulder strap, hand strap, and more.