Wot JM said. I'd call it a dobby weave. Its a bit like a waffle????
From memory pique is a dobby weave.
The lightness as a jacket is likely due to weight of fabric, and structure, or lack of, rather than the dobby weave. I.e. you are using shirt fabric to make a jacket. Not that unusual, Oxford cloth can be used for jackets and trousers, similarly seersucker, linens generally and other examples