The grippers at sole of socks provide superb grip for fall prevention while walking running on slick surface such as wood floor,tile floors Size and dimension details available see in 2nd figure, Great support for toddler 2T 3T 4T 5T Material: 95%cotton+5%spandex medium thickness available all season. There are several patterns(12 designs ) in the package, which is a favorite for boys Use of high quality knitted fabric is not torn or deformed to even wash by washing machine.