I've found an indie undie maker! I just bought two pairs of knickers from here and they are really comfy, and tick all the eco friendly boxes. They are handmade in Queensland, on the Sunshine Coast (think Eumundi markets) from fabric offcuts, with an organic cotton gusset. I bought the Lily ones, not too racy for me! You just select what colours you like and a theme, and they make them to order, so it's a bit pot luck, but sometimes surprises are ok.