Insulated Design The Cello Nexon Insulated Flask is engineered with advanced insulation technology to maintain the ideal temperature of your beverages Whether its hot or cold this flask keeps your drinks at the perfect temperature for longer periods DoubleWalled Construction The flask features a doublewalled design providing enhanced insulation to keep your beverages hot for up to 12 hours and cold for up to 24 hours Durable Construction Constructed from 188 marked stainless steel both inside and outside the Nexon Flask is built to last The stainless steel material not only adds to its durability but also ensures that your drinks remain free from any metallic taste or odor Thermo Seal Technology Engineered with thermo seal technology the Nexon Flask delivers optimal insulation and temperature retention This technology seals in the temperature of your beverages keeping them at their desired temperature for extended periods Variety of Colors Express your personal style with the Nexon Flask which comes in four vibrant colors Black Blue Pink and Green Choose the color that suits your personality and preferences and make a statement wherever you go