Description So Young - Safari Friends Ice Pack Polyester fabric. Filled with water and cellulose gum (non-toxic). Fully immersible and washable. Condensation-free. Remove ice pack from outer sleeve to wash. Dimensions: 7"L X 0.25"W X 4"H PRODUCT DESCRIPTION Finally, a condensation-free ice pack that keeps your lunch cool but dry. Generously sized, non-toxic and washable.