Many years ago the bra was invented, the in the 1890's the underwire bra was invented, thank you Marie Tucker, then in the 1940's the push up bra was started to develop, it was a painful contraption according to Jane Russell, the first lady to wear one. Many people still think of the push up bra as a development of the 1990's, we all remember the ad "Hello Boys", it caused a stir at the time and a few car crashes, but it was developed a long time before that. The next great development was the silicon insert bra, also known as the water bra or Gel bra it is the next big step in the evolutionary chain of the bra. It is a natural successor to the push up and the padded bra. Sales of the silicon bra have gone through the roof over the last couple of years, with some manufacturers looking at sales quadrupling year on year. So what is the silicon braWe need to start with a padded push up bra, the design really does not change too much, the main difference is that instead of having cotton padded inserts in the cups, these have been replaced with silicon, water or gel inserts. This small change has such big effects. push up bras Some Bras come with different sized inserts allowing you to alter and change the final look to your cleavage. This option is great to enhance and give you a fuller look when needed to compliment your outfit of choice. The most amazing thing about this bra is that with these sort of liquid inserts, the natural looking movement you can achieve is stunning. Bras in the past, especially pus up or padded always held your cleavage rigid and this did make your cleavage look faked. Now with the new silicon bra you still get all the enhancement you need to give you that fuller, firmer bust that you so desire with a natural look and movement that works with your body. To gain the most benefit out of any bra, no matter what the design or type, correct fitting is vital and its importance cannot be over stated. An ill fitting bra now matter how well designed will never give you the look or feel you are after. Always check your size before you buy, always. For further information on all types of bras and recommended products, please take time to visits Best 4 Breasts, Breast Enhancement Bra guide.