Wide application - Suitable for use in coolers, lunch boxes, bags, and storage containers; compatible with reusable ice containers and ice packs. Multifunctional design - Functions as a cooler accessory, lunch box component, bag insert, and storage container; can be used as ice storage bags for ice or camping ice bags. Reliable and durable - Made from PE material (polyethylene) for long-term use; supports lunch packing accessories and freezer ice storage. Durable and dependable - Constructed from rugged PE material for reliable performance; suitable for fridge storage containers and freezer ice storage. Use scenarios - Road trips and picnics: pair with a cooler to keep beverages and perishables cold, extending freshness during travel or outdoor meals. - Daily lunches: use with your lunch box and a compatible ice pack to maintain cold, fresh meals for work or school. - Outdoor and travel: ideal for camping, boating, or travel where portable ice storage is needed to keep items frozen or well chilled.