Nothing says sex appeal more than soft, sensual and sustainable underwear. Eco-underwear has come a long way since the 60s when there was nothing arousing about the off-brown organic cotton grandma underwear hippies used to wear. The modern eco-gal has a wide selection of sexy underthings to choose from. Guaranteed to make any man or woman’s blood boil – from the laidback hippie to the randy redneck. We have compiled a list of some of our favourite eco-underthings –a guide to how to go green down there.