A super thin upper but still not a perfect fit
The upper plays a huge role in those weight savings. The new upper is made of a paper thin engineered mesh. Its see-through aspect will allow you to play with socks if you like to put nice colors in your shoes. Most importantly, it is probably one of the most breathable options out there. Overall, a much lighter feel against your feet.
The material itself isn’t the nicest and it’s a bit abrasive but not quite as much as the Boston 12. The tongue isn’t padded by any means but I did not experience any lacing pressure. It’s a classic semi-gusseted tongue, which I do prefer compared to the tongue and lacing system of the Boston 12. The fit is still not ideal on the Adidas Adios 8 and the shoe runs quite long. I would probably go half-size down, at least to try how it would fit, but I can imagine it would work better. No lockdown issues though.
The overall experience from the upper isn’t ideal but is certainly far from being an issue.