Square Root of 169 Years Old 13th Birthday T-Shirt (Set 03)-TH

Solid colors: 100% Cotton; Heather Grey: 90% Cotton, 10% Polyester; All Other Heathers: 65% Cotton, 35% Polyester, Imported, Machine wash cold with like colors, dry low heat, 13 year olds will love this t-shirt for it will make their friends, classmates and relatives think how old they are. Great birthday gift to any 13-year old teenager or for others who feel like they are only 13 years old. This Math square root problem t-shirt for 13 year olds is available in different sizes. Please click on the brand name, “Square Root B-Day Tees” for more options. Lightweight, Classic fit, Double-needle sleeve and bottom hem