The Ivy League look developed on East Coast campuses during the 1920s & 30s, and became widely popular in the 1940s & 50s. Combining the dressed-down attire of universities with a rougher, casual fabric style — oxford cloth shirts, brushed Shetland sweaters, Harris Tweed jackets, flannel trousers — the Ivy Style required distinct eyewear. Below are Focusers' take on the P3 shaped tortoise shell eye frames that are sought out by those who value the classic Trad Prep look. Order as prescription, readers or bifocals. Or order frame only with a demo lens shape that your local optician can use as a template.