I needed a general purpose backpack to slot between my casual Jansport and my Dakine hiking bag. I had five basic requirements: Black color Polyester material Larger than 26 liters Utility pouches for water bottles Internal compartments for a laptop There were several choices and I was liking the Adidas - Striker II selling for $20, but couldn’t find any in black so I opted for a black Adidas - Foundation V. Both the Striker and Foundation look very similar, with the proportions of the Striker being slightly smaller. My options Jansport Superbreak 501 - $17 Adidas Striker II - $20 Adidas Foundation V - $27 Size - 33 Liters Overall, I’m liking the Foundation V, it’s a bit larger at 33 Liters compared to my 26 Liter Jansport 501. Compartments - 4 It has four compartments with a laptop sleeve in the primary and a mesh zip pouch in the secondary with key leash. The third pouch is padded for sunglasses and fourth pouch for small utility items. That is double the compartments on a Jansport