This one is of Black Widow in Captain America: The Winter Soldier. It is a great casual everyday outfit and a comfy back to school outfit as well.
This is probably one of the easiest everyday cosplay outfit I have done since it was worn to blend into the crowd. Pretty much everything is very similar to the onscreen outfit except for the shoes. I couldn't find a pair with purple laces. Its not really a problem as you can easily change the them to purple laces that can be found at any shoe store. I added two things to the outfit. A rucksack that I thought match the clothes for carrying whatever you need school. The second is an arrow necklace, hint her bond with Hawkeye.