Check the listing for details. USAF C-21 Learjet "Cougar Driver" Patch. Condition: New. Listed at 5.99 USD. AUTHENTIC, mint condition 4" C-21 Learjet "Cougar Driver" Patch. The C-21 is the Air Force version of the civilian Learjet 35. It is used to transport US military and civilian distinguished visitors all over the world on official business. Nicknamed the "Cougar" because the C-21 is a little older but still a great looking jet. RECENT FEEDBACK: - "Nice patch packed perfectly and sent fast! Terrific eBay seller! Thanks again!!!" - "Very quick delivery!! Very pleased!! - "THANK YOU! MINT! AWESOME! EXCELLENT! FAST DELIVERY! WILL BUY FROM YOU AGAIN! A+" - "Extremely fast and cheap delivery overseas (Germany) ! Great quality ! Thank you." - "Great fast delivery!" - "Very nice!" - "Very nice patch, would buy again." - "Really nice patch." 100% satisfaction guaranteed or your money back.