This black t-shirt features a humorous math equation that equates cosine and sine, followed by the word 'SHIFTY' in bold white letters. The shirt is made of a comfortable-looking fabric, perfect for everyday wear or for showcasing your love for mathematics. The design is simple, modern and great for those who appreciate nerdy, math-related jokes. It's ideal for wearing to school, university, or any casual event where you want to make a statement and express your witty side. A great conversation starter and a comfortable addition to your wardrobe!