The Nike MetCon 1 is a shoe that is designed to support workouts of the highest intensity throughout every level of competition. While it's well and good to put out sport-specific shoes for soccer or basketball, every athlete has to put in long, hard hours in the gym lifting weights or doing cardio, so it's important to have access to a shoe designed for those activities.
The shoe is versatile in that it is designed for pretty much anything you'd do in a gym. It has a firm heel that handle the demands of weight lifting, keeping you steady when you squat or dead-lift brutal weights. Meanwhile its midsole offers cushioning and support for cardio and plyometric exercises.
Ultimately, what you want in a gym shoe is for it to perform at a level where you don't need to worry about comfort or fit and can just push yourself to the limit. The Nike MetCon 1 promises you just that.