Pottery Barn Belgian Flax Linen Duvet Cover, King/Cal. King. Color: Soft Rose (pale pink). Duvet cover made of linen woven from 100% Belgian flax, pre-washed for a soft hand feel. Reverses to the same. Features a hidden button closure with inner ties that keep insert (not included) in place. Measures 108” x 92”. Pre-used; in excellent condition, with no flaws, rips or tears. Retail price: $329. Asking price: $78.