the Non-woven Aluminum Foil Insulation Bag is Crafted From High-quality, Non-woven Fabric Combined with a Reflective Aluminum Foil Layer, Making It a Robust & Eco-friendly Choice for Various Applications. This Unique Blend of Materials Ensures Excellent Thermal Insulated Insulation, Effectively Retaining Heat or Cold to Keep Your Food & Drink at the Perfect Temperature for Extended Periods. Designed with Versatility in Mind, There Are Mesh Pockets & Label Bags on the Side for Your Convenience, Perfect for a Wide Range of Uses, From Outdoor Adventures Like Hiking & Camping to Everyday Activities Like Lunchtime at Work or School. Furthermore, These Insulation Bags Are Customizable, Allowing You to Personalize Them with Your Favorite Colors & Designs.