Most back-protectors have a hard outer-shell, so wearing one is rather like strapping an armadillo on your back. But there are other options, Forcefield an English company, sales the Forcefield Pro L2 back protector which is radically different in that it features a flexible, honeycomb-type construction.
Just because it's soft and flexible doesn't mean it's less protective, though. On the contrary, in several international independent impact-absorption tests the Forcefield Pro L2 back-protector outscored several of its "hard outer-shell" major rivals. On the level of wearing comfort the Forcefield back-protector has little competition, being one of the only flexible products on the market.
Forcefield claims that, because it's flexible, it's also less restrictive than its competitors. But then we don't do any serious exercises on the bikes we drive. Naturally, the product has been tested and is CE-approved, and EN1621-2:2003 and EN340:2003.
Forcefield also has a dedicated Ladies specific design available to ensure perfect fit for the female drivers. It's a same they not come in different colors so the selection is black or black....