My temporary laptop for the next two mouths is a Lenovo Carbon X1 Gen5.
I Need a thin sleeve to secure it for work. Of course the internet is plenty of bags, and Amazon offers a lot of them, but ... a lot for a lot of bags they say "it's for a 14 inch laptop", "it's for a 13 inch laptop", which is not enough to describe anything useful when the inner dimension is just missing or wrong.
The ideal would be something thin that can fit into a backpack or messenger bag, shock and possibly water proof.
Solved: uk.shamballa has suggested the "LP135-14U" bag, which is perfect!