Ellas House (? - it's Ella's something, I could be getting confused with some kind baby food thingy..... I know there's an ellas something too!) hemp fleece boosters are great
Nice and slim fitting. I find hemp fleece tends to work better for us than hemp jersey, but you can pick up Easy peasy hemp Jersey boosters for about £2 each, and they're not too bad.
Hemp is just as absorbant (more IMO!) than bamboo, and dries much quicker too