The hardest piece of clothing to shop for as a mature woman has to be pants. That's because as you age, your body shape changes. Blame it on the hormones, once you reach the age of 40, you are no longer the “apple” or the “pear” that you used to be. Remember that thin waist you used to have? It may be replaced with a thicker middle and despite no dramatic changes in your eating habits you may find it harder to shred stubborn belly fat and begin to experience unintentional weight gain. So your trusty go-to pants may not fit the same as they used to. What this means is having to shop for ladies pants that have been specially designed to fit mature figures.