Who Invented It: Murray Pletz
Year Introduced: 1967
The "Jan" in "JanSport" is named after Pletz's wife Janice "Jan" Lewis. JanSport innovated on top-loading daypacks by introducing panels that campers could load their gear into. The company also introduced the first convertible travel pack in 1975, and its signature daypack as well, which kids have been carrying variations of to school for years.