Introducing our Cariloha Retreat Pillowcases(TM), made from our exclusive bamboo lyocell fabric. Like our Classic and Resort Pillowcases, our Retreat Pillowcases are softer to the touch and more sustainable than other non-bamboo fabrics, making them the perfect addition to our soft, sustainable bedding collection. Designed to prevent pilling and shrinking. Fits Pillow Standard: Fits pillows up to 20" x 32" King: Fits pillows up to 20" x 38" Manufactured to fit our premium Cariloha pillows. Engineered for post-wash shrinking, for a more standard-sized fit. Recommended to wash and dry your pillowcase for best fit. 100-Night Home Trial Feeling every day like you do on vacation is guaranteed with our 100-Night Home Trial. No need to toss and turn over it being right for you - all bedding products can be returned or exchanged within 100 days. Materials Made of 100% bamboo lyocell