On average, it takes 10,000 litres of irrigation to grow just one kilo of cotton but flax plants grown in Northern Europe only require natural rainfall. That's 0 litres of irrigation.
Flax plants have very few natural enemies, so they require fewer pesticides compared to other major crops like cotton. And the whole of the flax plant is put to use. No waste.
Linen’s antibacterial properties mean it doesn’t need a wash every time it’s worn. We wear our shirts 4 or 5 times between washes. Less water, less electricity.