From the Resort Bamboo Collection by RHH by Bamboo Bliss, this pillow features:  Bamboo is a natural, renewable resource, grown without fertilizers or pesticides and has natural antibacterial properties. Bamboo pillows are filled with a soft and supportive down alternative poly surrounded by rayon from bamboo so you get all of the benefits of bamboo, even in your utility pieces Hypoallergenic and antibacterial for a healthy sleeping environment Moisture wicking and breathable to keep you cool and comfortable Silky to the touch and thermal regulating for the perfect nights sleep 300-thread-count sateen cover Rayon made from bamboo fiber shells filled with down alternative Polyester Approx. 0.25" wide double-needle hem with 0.125" self-piping Approx. 4" quilted square pattern in tonal white thread Jumbo approx. 20" x 28" King approx. 20" x 36" Machine wash Imported.