This 233 TC Cotton Allergen Barrier All Season Down Alternative Comforter features an ultra-soft 100% cotton breathable fabric, which is specially engineered with an allergen-barrier fabric to guard against dust mites, pet dander, pollen, and other allergens from inhabiting the comforter. Filled with our exclusive ultra lofty hypoallergenic fiberfill, which provides a silky-smooth sleep surface, all-seasons warmth, and serene down-like softness for a luxurious nights’ sleep. The sewn-thru box stitching construction prevents fiber shifting and the piped edges give it a fine finish.