There are no noticeable stains. A high-performance soft cooler box from a Korean outdoor brand, with excellent heat and cold retention. Suitable for temporary food storage, cooling, and transportation in a wide range of outdoor sports and leisure activities such as camping, barbecues, and fishing. Specifications: ■ Production Area: China ■ Materials/Components: 840D TPU laminate / High-density NBR insulation ■ Product Description ・20mm thick high-density NBR insulation: Uses 20mm thick high-density NBR insulation. Excellent heat and cold retention, and protects against external impacts. By using ice packs or ice, this premium soft cooler can maintain its cooling power for one night and two days. ・Built-in inner mesh tote bag: Includes a mesh tote bag for easy removal and carrying of food and drinks.