The Neve Gear Insulated Food Cosy is made of insulated, reflective, durable, non-woven fabric. The cozy has a pouch cover or lid that closes with hook-and-loop fasteners that runs the length of the lid. Near the top of the cozy is a small plastic loop, which is sewn into the material. It's designed to help keep your meals warm while you're on the trail, and is ultra lightweight and packable. The food cosy is designed to help retain temperature for foods that require cool storage, and also allows for a speedier cooking time for hot foods. The bottom of the cozy is gusseted, which creates a more stable base when the pouch is filled. Near the gusseted bottom are two small, black elastic loops. When the cozy is folded in thirds, these elastic loops can wrap around the material to keep the pouch folded and compressed. Some people roll down the sides of the insulated pouches to make it easier to eat out of the meal pouches. The bags are highly packable as they compress down to nothing when not being used.  It's probably best to think about the pouch as a “thermos” bag—it retains temperature for foods that require cool storage, and also allows for a speedier cooking time for hot foods.