Not as good as before

I have been purchased Givenchy Hosiery for past few years and loved the support and texture of "Essential Firm Leg", but felt deeply disappointed after receiving the item this time. I order two different colors, one color is made in USA, another one is made in China. The actual size of MIC is obviously smaller than what I used to wear before. I am about 5'3, 110 lbs. Per the size instruction, I picked size A (the same size as I ordered before). The length can only reach to the middle of my thigh. However, I have no size problem toward the made-in-USA one. After comparing two items, the difference is about 4 inches! No wonder I cannot fit in the MIC one.There should not be any size problem of products from different countries. I felt very disappointed.