Women Winter Wear Thermals. Thermal Is Out Now With A Unique New Hollow Fabric Technology That Traps Hot Air & Gives Your Creamy, Soft Skin Excellent Warmth. Three Layered Cotton Poly fill Quilted Technology in Thermal Retains The Body Heat, Providing More Heat To You Than The Woolen Thermals. This Leads To Ultimate Comfort, Long Durability & More Breathability . Thermals are Ultra Soft Made of Fine Cotton.