MALOUF Z Travel AERATION Pillow Removable Rayon from Bamboo Velour Cover 3-Year Warranty Filled with air cushioning polyethylene tubes that promotes continuous airflow Outer cover features soft rayon from bamboo velour on one side and stretchable spandex on the other Orthopedic design correctly supports the natural curves of you head, neck and shoulders Two-sided cover offers softness on the upper side and flexibility on the lower side for comfort and conformation Travel size pillow measures 12" x 16" x 4"; 3-year warranty