Double-wall insulation, Rumbott thermos It has a double stainless steel wall with ceramic insulation inside. This allows you to maintain the temperature of your drinks for a long time, as it is protected by this ceramic layer, which means that the liquid does not oxidise in contact with the stainless steel. We guarantee that you can have your iced tea for a whole day or keep your soup hot for up to 12 hours. Black colour, non-slip base. Capacity 600 cc. Comfort is not at odds with design. The rubber base is one of the stars of our products. The textured silicone circle performs this function silently to leave a pleasant feeling when placing the bottle. Always upright and an extra comfort in your day to day. High quality product. Used by elite athletes. The sustainable revolution Every second more than 200 kilos of rubbish are thrown into seas and oceans. 80% of this rubbish is plastic and derivatives that can take up to 1000 years to degrade, seriously affecting all marine life and therefore us. It is a reusable container made with top quality materials that will help you contribute to not generating more waste. It is time for a revolution, to change habits and to improve our world. Delivery between 8-10 days