Silicone material is lightweight, soft, safe, non-toxic and harmless to your feet , Air holes can provide enough air for your feet to breathe and wick moisture , Protecting toes by reducing friction between them , Preventing and repairing cracking or peeling , softening dead skin and improving rough skin for foot , Preventing or curing plantar fasciitis , metatarsalgia , corns , calluses , bunions , blister , etc