The fins offer exceptional insulation, the lid can be squeezed on with one hand and there are drain slots on the base to remove excess water after a dishwasher cycle.
Plus with nothing to take apart, its easy to clean and super hygienic.
We only offer a natural (no dyes, just the colour of our husk) and one with a charcoal pigment. Whilst we think they look great, the real reason is so that they are easy to separate and recycle at their end of life.