Practical opening: The well-thought-out opening diameter allows easy drinking without overflows. Silent cap: Plastic screw, for discreet opening and closing, without contact with drinks when closed. Removable headband: Change the green silicone headband as you wish! Double-walled stainless steel under vacuum: The Gloup isothermal bottle keeps your drinks hot for 12 hours and cold for up to 24 hours. Materials: 18/8 double-walled stainless steel under vacuum. Base: 6.5 cm. Neck: 3.5 cm. Capacity: 350 ml. Volume: 370 ml. Cap: stainless steel interior/exterior, PP #5 plastic screw thread, silicone seal (without BPA, PVC or phthalates). Cleaning: Regular with soapy water and a brush. Dishwasher: Cap not compatible. Responsible manufacturing. Durable product made in China Weight with packaging: 255g Package dimensions: Length: 7.5 cm. Width: 7.5 cm. Height: 19 cm.