West Elm describes as: Our Belgian Linen Sheet Set is crafted from fine Belgian flax, which is washed for a lived-in look. Prized for its breathability, linen keeps you cool in the summer and warm in the winter. Our linen has a crisp, natural texture that softens with every wash. 100% Belgian flax. Due to the wash process, color will be unique to each piece. Set includes a flat sheet, fitted sheet and 2 pillowcases. Made in a Fair Trade Certified facility. Learn more about the positive impact your purchase has on Fair Trade workers and their communities. Linen woven from Belgian flax, constructed in China.