As far as washing is concerned - let's agree that you will wash them only at 30°C and dry them in the dryer at a low temperature, otherwise it could happen that you will no longer be able to wear them - you can find out more below in the classic product information. 2PACK women's thongs Calvin Klein multicolor They are made of nylon and elastane.4 L 77-82 99-104 40 XL 82-87 104-110 42 They have a pleasant soft elastic at the waist that does not pinch anywhere.5 M 72-77 95-99 37.