Square Root of 256: 16th Birthday 16 Years Old T-Shirt-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, Square Root of 256 16 yrs 16yrs yr best birthday b-day bday geek nerd geeky nerdy math mathematic algebra science present pun born in 2001, quote textual saying cool gift ideas joke funny humor sarcastic, Lightweight, Classic fit, Double-needle sleeve and bottom hem