It's a beaut, Clark! Research – Analyze – Study – Change. IPR's very own Nikki Kesaris designed this awesome t-shirt showing the love for research and science. Our most versatile performance shirt perfect for anything your day may hold. This short sleeve men's cut t-shirt is an optimal tri-blend in the color heathered charcoal. This shirt is made from a 4.5 oz, 50/25/25 polyester/cotton/rayon blend.