Pottery Barn describes as: Woven from the world’s finest Belgian flax, our linen bedding is prewashed for incredible softness—and only gets better with time. Lightly textured and cool to the touch, this natural-fiber fabric is prized for its durability, breathability and lived-in look. Our Belgian flax linen bedding is proudly made at a Fair Trade Certified factory. Linen woven from 100% Belgian flax. Prewashed for a supersoft hand feel. Designed with tie details. Ideal for warm or cool temperatures. Fair Trade Certified. The purchase of this product helps ensure fair and safe labor practices, improve livelihoods, and empower workers to invest in their communities. STANDARD 100 by OEKO-TEX certified. Tested in an independent lab and verified to be safe from over 350 harmful substances.Machine wash. Imported.