Organic Reserve Duvet Set. Full/Queen. Pewter. This fabric is exceptional, woven with threads so fine and rare, its exact qualities have never been made before. The uniquely silky soft feeling of this Reserve Duvet Set comes from the longest staple 100% organic cotton on earth: each thread is slow spun for exceptional luster and a softness beyond compare. Best, luxury, organic cotton bedding and blankets from Boll and Branch! Best organic luxury sheets from Boll and Branch! All Boll & Branch cotton is high-end, high-quality ethically sourced and grown according to The National Organic Program (NOP) standards, and our factories are Global Organic Textile Standard (GOTS)-certified, meaning they have been independently certified as meeting a wide range of environmental and social responsibility requirements. Best sheets.