Relive the nostalgic memories of physics and math classes with this vintage inspired apparel featuring a graphic of a slip stick ie slide rule. A throwback for baby boomers, retired engineers, chemists, scientists, physicists, math teachers and professors Celebrate the skill of former teachers and scientists with this hand operated vintage analog mechanical calculator apparel. Designed as a tribute to the old fashioned tools and techniques used. Great present for the next high school or college reunion! Lightweight, Classic fit, Double-needle sleeve and bottom hem