Useful, practical are the meaning words for this jacket.
Dyed in a color that was astringent than military khaki [dark green]
The quilted part is lining, the main jacket can be removed,
further turning over the inside and outside, you can be wear it separate.
The material is a famous mountain park called 64 Cross,
We used cotton & nylon high confidential one which raised cotton blending ratio slightly.
Because it is blocked, it makes it difficult to pass the wind, and even this alone can protect you from the cold wind
When they are connected together, it will multiple the effect for protect you from the cold.
You can use it 3 WAYS, that is a "practical" jacket.