Natural wool mattress topper filled with organic wool and encased in a beautiful, undyed, untreated off-white organic cotton. The virgin wool is derived from free-range organically raised North American sheep. This topper is hand constructed with attention to detail. It has a circle stitch pattern that keeps the wool in place. Has 1 inch wide corner elastic straps. Approximately 2.5" thick. Has has 43 oz per yd2 of wool.