You're submitting an application for an internship with a reputable brand of your choice. 

You have been asked to produce an essay as part of your application that demonstrates your knowledge of marketing theory and your ability to critically examine how the insight gained from your reading may be applied to the brand's marketing activities. 

They expect you to give marketing recommendations for the brand in your essay (i.e. explain how they might adjust one or more elements of their marketing mix).

 The subject is Sustainability.

The Brand Of Choice is Nike

 

-Please Assist Me in Explicitly Defining and Explaining That 

-If there is relevant source , please provide for a better understanding