My non-toxic gel pack comes inside a moisture-resistant cover which is made from recycled plastic bottles! I am ideal for kid's lunch boxes, keeping baby bottles cold, and handy for boo boos. Pop me in the freezer (with cover on), place in your lunch sack, and ice pack will keep lunch cold for hours. Depending on the environment, cover usually remains moisture free. My cover is moisture-resistant and is machine washable. I am 4.5" by 6.5" by 1" and every pack contains 5.3 ounces of gel. I am BPA free, phthalate-free and lead-free.