premise: For example , the success of The Gap 's jeans , J. C. Penney 's Arizona line , and Sears 's Canyon River Blue line has led to erosion of the market share held by the two leading jeans manufacturers , Levi Strauss and VF Corporation .
hypothesis: Levi Strauss was one of the jeans manufacturers that lost market share to the success of jeans by brands like The Gap and true is true .