The Perfect and Unique Gift for Men, Women, mathematics teachers, algebra teacher, math nerds, geeks on Holidays and Special Occasions. Great gifts to buy for back to high school, Halloween, graduation, pi day, birthday or normal day. Make a great gift for mathematics students, computer programmers, science teachers, math nerds, geeks, hackers, video game players, robot lovers, science-fiction and fantasy fans. Nerdy Vintage Rene Descartes Algebra Mathematician Math Teacher Lightweight, Classic fit, Double-needle sleeve and bottom hem