T-Shirt Sizing (2025)

How To Measure

Place a shirt which fits the way you prefer flat on a table. Measure across the shirt just beneath the arm and from next to the collar down to the hemline. Compare to the chart below. If you fall between sizes, please size up! 

While we buy shirts which are labeled as pre-shrunk, we cannot guarantee a complete lack of shrinkage or color loss after washing and wearing. To limit this, please wash your NerdyKeppie t-shirts inside out and in cold water. For absolute best results, hang your shirts to dry. If you prefer tumble-drying, please tumble-dry low, inside-out, and remove from the dryer as promptly as possible.