- Boenkush BWB280 thermos, 280 ml, perfect for keeping drinks hot or cold for hours - Advanced vacuum insulation: keeps heat for up to 12 hours and cold for up to 24 hours - Made of high-quality 18/10 stainless steel, safe for daily use and resistant to corrosion - Compact and portable design, easily fits in backpacks, bags, or lunchboxes - Leak-proof lid and no exterior sweating, ideal to prevent spills and keep your backpack dry - Wide mouth for easy cleaning and filling of liquids - Versatile: suitable for children and adults, ideal for water, coffee, juice, or milk at school, work, or travel - Modern blue color, ergonomic size for a comfortable and secure grip