A bikini that dissolves in water has outraged killjoy women's rights campaigners.
The saucy thong swimsuit - sold as the perfect present for dumped boyfriends - looks like a real bikini but disappears completely after just a few seconds in water.
Sellers in Germany bill the Get Naked costume as a chance for men to get their own back after a break-up.
But women's rights campaigner Rosmarie Zapfl stormed: "It is an absolute insult to women that this has been invented."
The dissolvable bikinis are being sold on the German revenge website www.racheshop.de with sizes 34 and 36 in a thong version and 38, 40 and 42 with bikini bottoms.