Amazon calculates a product’s star ratings using a machine learned model instead of a raw data average. The machine learned model takes into account factors including: the age of a review, helpfulness votes by customers and whether the reviews are from verified purchases.
I'm honestly amazed by how small this backpack packs up. It's a reasonably sized backpack with sturdy straps, handy for if you need an extra bag or a daypack on holiday. I didn't expect the straps to be so thick. I was expecting them to be flimsy so I'm pleasantly surprised by how comfy they are. Very well built and great quality.