Product Description LENDAN Stainless Steel Bottle featuring exclusive double-wall vacuum to perfectly conserve your drinks original temperature. Thermal Hot/Cold Insulation: keeps drinks cool for 24 hours and hot for 12. BPA FREE / Sustainable: Stainless steel 304 of the highest quality rust resistant. Reusable and Recyclable. Leak-Proof Lid: condensation-free vacuum insulation. Screw top lid for maximum safety. Quality standards certification. Practical and Functional: high capacity, up to 500ml. Ergonomic design for greater comfort.