SACK FRANCISCO DEFENSE San Francisco 49ers Football Girl's T-Shirt – Bewild

San Francisco 49ers T-Shirts, 49ers Shirt, 49ers Tees

SACK FRANCISCO DEFENSE San Francisco 49ers Football Girl's T-Shirt

Wilson San Francisco 49ers NFL Fan Shop

That's right, SACK FRANCISCO 49ers. The term was popularized when Justin Smith was seen in an interview in 2014 sporting a SACK FRANCISCO shirt, and

SACK FRANCISCO DEFENSE San Francisco 49ers Football Girl's T-Shirt

San Francisco 49ers T-Shirts, 49ers Shirt, 49ers Tees

Wilson San Francisco 49ers NFL Fan Shop

SACK FRANCISCO San Francisco 49ers Football Kid's T-Shirt – Bewild

Wilson San Francisco 49ers NFL Fan Shop

San Francisco 49ers T-Shirts, 49ers Shirt, 49ers Tees