Transforma: Expandable Transformable High-Quality Oxford Waterproof Backpack with USB Charging Capability

Great bag with good expandable capacity for trips and zippers to compress when not required. Separate accessible compartment to water bottle and umbrella. Most importantly it has a hideable pocket for money and other valuables. Straps and ergonomics of the bag are good as well. Overall very happy with the bag

Excellent purchase! I like the size, which my lunch bag and 1L water bottle fit in. I also pack my books borrowed from the library. I am planning on using it during my business trip. The other one that I was small and didn't fit much stuff.

I honestly loved them, the quality is really good.