A longboard company that sells decent longboard decks, although a lot of 11 year old newbie boarders think S9 is the best company hands down. They often go and get their parents buy a S9 complete and try to act cool even though they don't know anything about boards. These people give S9 riders a bad name often.
NOTE: To avoid this say the name of your board not "Sector 9" (See Example 1)
Also over the years S9 has started putting Chinese low-quality parts on their boards, Gullwing Chargers are no longer USA made and feel cheap now. The Decks are still good though!
Randy: "What board you riding?"
Andy: "A 9 Star -Paris trucks, and Retros"
Tip: Don't get pre-made Sector 9 boards select your own parts, and get the reviews first. Have a boarding specialty in mind like Cruising.