If I could figure this out I could retire rich

If I could design a shoe with a 3" heel that looked great and made women look great that didn't trash their feet and wreck their postural dynamics - I would be rich. Here are some design considerations:

1) The feet slide down into the toe, wedging them together which leads to hammertoe / bunions etc. You can add material (eg: suede)to the inside of the shoe that helps keep the foot from sliding, but it is an inherently unstable platform and the foot does move.

2) The angle the foot is maintained at pulls the connective tissue on the front of the body downward, rotating the pelvis forward which makes the butt stick out, but also encouraging the ribcage to slump and pulling the shoulders forward. This moves the head forward, creating neck pain, headaches etc. 

3) The muscles of the calves have to shorten to adapt the posture to the hyperextended foot. These muscles are associated with Triple Heater Meridian and the fight or flight response, and having them chronically activated can lead to Adrenal exhaustion and feelings of insecurity and excessive caution.

4) The nearly complete absence of medial / lateral stability in high heels is not only tiring on the knees, but activates the adductors and abductors of the thigh. These muscles are associated with Pericardium meridian which has the function of protecting the heart. If they are hyperactive, the heart is going to have trouble remaining calm.

5) The evolving arch support for the body on flat surfaces does not get to function when the foot is positioned at an angle  and shock loads are transmitted through the ankle into the knee and hip without the attenuation that the spring action of the arch provides.

On the plus side, these shoes look great on womens legs!