13 years old Birthday Gift Idea Square Root of 169 T-Shirt-BN

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; Adorable gift shirt for a math loving daughter and a math loving son, granddaughter and grandson also as a nephews or a nieces birthday present on 13 year old official teenager 13th bday celebration. Funny simple math problem square root of 169 13nd birthday shirt. When on this teens birthday party they figure out its meaning everyone will love it and its going to be a hit t-shirt and hit saying.; Vintage Square Root of 169 T-Shirt made to have fun on your 13th birthday with this funny math nerd shirt for boys and girls. A nice gift idea for born in 2004 and awesome since 2004. Funny Math problem 13yrs 13 years old 13th b-day gifts for a teenagers are different and this nice t-shirt is really great. Runs small so size up. Need Shirt for Another year click on the brand name: Very Fun Shirt Square Root Years Old Math Nerd Tee; Lightweight, Classic fit, Double-needle sleeve and bottom hem