The patch on which brand of jeans features two horses pulling a pair of jeans apart?

Levi Strauss & Co. is known worldwide for its Levi's brand of denim jeans. In 1873 Jacob Davis and company founder Levi Strauss invented the first blue jeans using their patented process of securing clothing at "points of strain" with rivets. In 1886 with the patent for riveted jeans set to expire (in 1890) the company came up with the idea of using a simple image to convey the toughness of the pants.

The two horses trying in vain to rip the jeans would become a trademark of the company and appear on patches since its inception. Strauss and others believed it was also a good way to stress the durability to customers who didn't know English. Levi's has used this design in their marketing and on their jeans continuously ever since.The product was called "The Two Horse Brand" until 1928, when the company adopted its Levi's trademark.