What is it? Well,it’s a sports’ bra simulator :)

The photograph might look strange…but this really is an interesting tool…The bounceometer simulates the effect on a woman’s breasts of taking part in sport. ( and running `s considered an extreme sport so far as the bust is concerned) This tool is the brainchild of ShockAbsorber who also sell bras tailor-made for particular sports.
To create a simulation of the effect of your sport on your chest, it’s here on the ShockAbsorber site.
Remember, you can also get bras for running to music here.