Check the listing for details. Pottery Barn Belgian Flax Linen King Blue Sham #3580. Color: Blue, Condition: New with tags. Listed at 79.09 USD. Pottery Barn Belgian Flax Linen King Blue Sham #3580 Item is brand new! Auction includes: 1 sham Linen woven from 100% Belgian flax.Breathable Belgian flax linen is ideal for warm or cool temperatures, and its durability lets you love it for years.Soft and cool to the touch.Microscopic breaks in the fabric provide a light massaging effect, and high absorbency meaning they'll always feel fresh and cool.Sham features an envelope closure.Pre-washed for a super soft hand feel.Machine wash.King: 20" high x 36" wideFlange: 2" wideCARE AND MAINTENANCELinen will get softer with every wash.Machine wash in cold water separately on gentle cycle.Use only non-chlorine bleach, if needed.Line or tumble dry on a low temperature.