>>46853543It's a few things in combination really
>SweatSpeaks for itself desu, it's kinda hot
>VestTomboyish and shows off booba, also sign of a working woman, see below
>Short hairAgain, tomboyish
>Boiler suitPartly the whole 'fully covered then undressing' shit but also there's something really hot about a woman who can do manual work. I can't explain this one beyond that though.