AiR 4DX Pillow

The AiR 4DX Pillow provides comfortable support that feels as if being held, wrapping around the head and supporting a smooth rollover with a moderate rebound. Nishikawa's AiR 4DX Pillow conditions with high specs, providing a precise fit no matter the sleeping position. Whether on your back or sideways, the advanced version of our AiR 4D Pillow suppresses internal pillow temperature and gives a truly refreshing feeling, integrating the highly breathable structure and the materials used within. Urethane foam with gel: Made in China Cover, Surface Urethane Foam, Urethane Foam Underlay: Made in Japan <High> Cover: 100% PolyesterFilling: Cover 100% PolyesterTop Chamber: 58% Urethane Foam 35% Urethane GelBottom Chamber: 7% Urethane Foam   <Low> Cover: 100% PolyesterFilling: Cover 100% PolyesterTop Chamber: 50% Urethane Foam 42% Urethane GelBottom Chamber: 8% Urethane Foam