Twill Weave construction Thermal regulating Update Bedroom Decor: Made of soft, organic viscose from bamboo using safe closed-loop method Cooling Sheets: Luxury viscose-from-bamboo bed sheets keep you cooler in the summer and warmer in the winter The Classic Bed Sheet Set from Cariloha is luxuriously crafted offering an incredibly soft and breathable sleeping experience. These sheets feature a twill weave that is cooler than cotton and designed for comfort in any season. The set includes various sizes and is easy to care for, with guaranteed satisfaction. Experience incredible luxury with these wonderful sheets.