Luxurious Allergy Shields TM White Down Alternative Duvet Insert, Twin--66"x86" Allergist Recommended and Medically Evaluated, Luxurious ultra-hygienic allergy protection A comforter with engineering design and new technology for your year round comfort Equivalent to 550 600 fill power white goose down fluffiness Revolutionary anti-microbial shield to protect against bacteria, mold, dust mites, pollen, mildew Save up to 50-percent over same comforter in Bed, bath and beyond