Lelinta Womens Slimming Pants Hot Thermo Neoprene Sweat Yoga Sauna Body Shapers Please use our own Size Chart guide located on the left of the product image,do NOT use the Amazon size guide.Shipping by Epacket,Generally delivery time is about 7-15 business days. Material: Neoprene, Microfiber, Nylon, Spandex. Unique fibers and material produce higher compression resulting in more sweating and help your body to sweat out harmful fats. Heats up your core body area and then burn excess calories in your body by retaining body heat; designed to maximize the effectiveness of your workout and fat burn,expedite calorie burning. High waist band to enhance sweat on abs; helps to reduce the abdomen, waist and thighs.