This generous 10 pack is currently for sale on Amazon with over 100,000 positive reviews (link at bottom) for almost $93 plus tax. Save half!
Amazon Basics 13.3-Inch Laptop Sleeve - 10-Pack: These black sleeves protect laptops and tablets from everyday damage with their slim design, top-loading zipper, and portability. Each measures 13.5 x 9.6 x 0.8 inches and the pack weighs 5.75 lbs.
Versatile - see if it will fit your family's tablet and notebook computers. Also perfect as a gift for school classmates.
https://www.amazon.com/AmazonBasics-13-3-Inch-Laptop-Sleeve-10-Pack/dp/B00JM5TCXK?th=1
13.3-Inch Laptop Tablet Sleeves, Protective Case with Zipper - 10-Pack, Black
$49.00Price