Patagonia offers its Patagonia Yerba 15" Notebook Backpack in Turquoise, model no. 47900, for $29.50 plus $8.50 for shipping. That's $4 under our November mention and the lowest total price we could find for it in any color by $13. Sales tax is added where applicable. This 22-liter daypack features an interior padded sleeve for laptops up to 15", stretch-mesh side pockets, and more.