Adopting natural coir runner, produced according to the international standard, enjoying the reputation of "plant spring". Coir mat possesses 52000 air holes, comfortable and clean, leads to healthy sleeping. The mattress won't sink through millions of experiences of longtime. After high temperature handled, possesses the function of anti-acacia, and the advantage of moving, easy to handled. The mattress measures up the environment protection, and is your best choice for sleeping.