NWOT Details Made from 100% flax linen. Breathable 170 GSM fabrication. OEKO-TEX® certified (so, no nasty chemicals). Ultra soft and incredibly durable, our 100% French flax linen fitted sheet in Sage is the foundation for a beautifully made bed. With a generous fit that snugly hugs every corner, this modern heirloom is made to keep. The thing about linen is it only gets better over time; the more you use and wash it, the softer and more comfortable it gets. What’s more, linen is good for you too: it’s anti-static, anti-bacterial and naturally temperature-regulating, meaning your sheets will keep you cool in summer and cosy in winter.