The cover, made of recycled plastic bottles, is removable and can be washed in the machine.
Inside that cover is a gel pack that, once placed in the freezer for a few hours, will keep your meal fresh in your lunch bag. Ketto Reusable Recycled-Material Ice Pack Raspberry. Ketto's cold pack, also known as an ice pack, is the ideal companion to your lunch box. Ketto's gel ice pack is reusable hundreds of times and is perfect for your meal bags for school, the office, a picnic or a hike.