Negative ion latex shoe cushion has characteristics of comfortable, flexible,breathable, anti-bacteria, free from dermatophytosis, highly elastic. It is also environment-friendly. It gives out scent that keeps mosquitoes and insects away. It can be washed and very durable. It is very healthy and practical shoe cushion. Because latex can be oxidized easily and slowly produced. So natual latex shoe cushion is hard to produce and the cost is high.