Personalised Tyvek lunch bags are not your ordinary paper bag. It may look and feel like paper bag, but this cooler lunch bag is manufactured from trendy Tyvek. The Tyvek has become very popular and this material itself is lightweight and extremely durable, resistant to tear and water. This Tyvek cooler lunch bag features an aluminium foil laminated foam insulation, a dual velcro folding top closure, it is excellent for keeping your food warm or cold. Suitable for packing fruit, medicines, lunch, and more.