The design of the T-shirt features the phrase 'Just Be Kind' in a flowing, cursive font. The words are arranged in a way that creates a sense of movement and fluidity, as if they are gently floating on the fabric. The choice of a black background with white text emphasizes the simplicity and purity of the message. The phrase itself is a reminder to always treat others with kindness and compassion, regardless of the situation. It's a call to action for everyone to spread positivity and make the world a better place, one kind act at a time.