Curated for a healthy home, the Clean Design Home x Martex cotton percale duvet set is expertly woven with a unique technology that creates a micro barrier against dust, dander, and other allergy triggers. A 300 thread count cotton percale cover fabric is crisp and cool to the touch. Clean Design Home x Martex is a collaboration with lifestyle expert Robin Wilson focused on creating a collection of bed and bath products to support an allergen-aware lifestyle.