Bamboo Underwear - Grass Tree Nude. Look good, feel good, do good! Our Bamboo Underwear - Grass Tree Nude is BSCI accredited, super soft, good for the planet, anti-bacterial and ethically made plus they come in gift-worthy packaging. The Bamboo Underwear - Grass Tree Nude print is inspired by the recent Australian bush fires. The Australian grass tree is stimulated by fire and large numbers of plants can flower and prosper after a wildfire. Grass trees epitomise the Australian bush: they’re beautiful, ancient, hardy and thrive in nutrient-poor soils. Featuring a Nude Base with thin leafy tones of Mocha, Burnt Orange, Sage Green and Terracotta.