I love the play of pattern against pattern! A coat over a jacket over a top, each with a different fabric.
And layers of clothes make sense, add more if you’re cold and less if you’re warm.
Plus, it can look so cool!
Two grid designs, a meisen checked trench coat over a jacket with a flower patterned collar.

For a different look, the same trench coat over a jacket pieced with the check and various shibori silks.

I look to the Japanese, who are masters of layering, as you can see in this 18th century print.
“The courtesans Hitomoto and Tagosode” by Kitao Masanobu.
Each woman is wearing at least 3 or 4 distinct fabrics, amazing!

My version, with 4 fabrics, a striped swing coat over a striped jacket.

Or this set, a trench with a cool woven design over a light weight jacket.

A detail showing the 3 different kimono silks.