"Breathe" is a pop anthem about being in a toxic atmosphere (relationship, friendship, environment, etc.) and how people overcome the fear of change and eventually leave the toxicity, finally being able to breathe after suffocating for so long. It starts off with a strong but subtle synth sample, which builds up over time and becomes a grand anthem in the chorus. It features a rap in the bridge which recreates someone finally getting every word trapped in their head out in a quick outburst.