Premium quality European white duck down supplied by RDS members, ensures that down and feathers come from animals that have not been subjected to any unnecessary harm. Filling power of 600 loft duck down cluster provides superb soft and comfy support to your neck, warm and self body temperature regulation, light-weighted and highly breathable. Our natural and sustainable comforter casing features 300TC 50% Tencel lyocell/ 50% natural cotton blend fabric. Made from renewable wood sources, Tencel lyocell is softer and smoother than cotton. The fabric adapts to body temperature, making it ideal for hot sleepers and those with skin sensitivities. Corner ties offer the option to put on your favorite duvet cover and secure the comforter in place. Okeo-tex Standard 100 Class 1 Certified.