Made from 100% flax linen. Breathable 170 GSM fabrication. OEKO-TEX® certified (so, no nasty chemicals). Comes packaged in a linen storage sack. You'll love sinking into the soothing shades of the Mineral & Fog Bedding Bundle every single night. Combining a duvet cover in Mineral, fitted sheet in Fog, flat sheet in Fog and pillowcases in Fog and Mineral, this curated set is as easy to select as it is to sleep in. Plus, enjoy an in-built 20% discount with every bedding bundle. 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.