Three pieces in a 60% TENCEL™ Lyocell / 40% cotton sateen blend: a 90″ x 90″ queen duvet cover and two 20″ x 30″ pillowcases. The blend is the point. Pure Lyocell drape is beautiful but slippery and has no body; pure cotton is crisp but holds moisture. At 60/40 the Lyocell handles humidity while the cotton gives the fabric enough structure to sit flat on the bed — and enough airflow that the cover never feels clammy. The sateen weave runs the yarns flat, so the surface slides under your hand and against your skin instead of catching. It resists pilling better than a short-staple cotton, so the smoothness lasts past the first few washes. A hidden zipper closes one end invisibly, and eight interior ties keep the insert from sliding. The cut accommodates inserts up to 3″ thick without looking bulky. Duvet insert not included.