Our double-walled SIGG HOT & COLD Glass WMB bottles are made of heat-resistant borosilicate glass. The double wall ensures an improved insulation effect. This means that tea and coffee stay hot longer, but drinks such as fruit and vegetable juices also stay cold longer. The two built-in filters allow everyone to use the bottle according to their individual needs. The long filter is particularly suitable for loose tea, the short filter is ideal for whole tea leaves or ginger slices. Both filters are easy to remove. The inside of the lid is clad with 18/8 stainless steel so that drinks only come into contact with stainless steel and glass. This does not affect the taste of the drinks. Pure silicone is used as the sealing material. All materials are of course BPA-free. Dimensions Height: O: Weight: 26.3 cm 6.9 cm 530 gr. Main Features: Hot and Cold - keeps drinks both hot and cold BPA Free Tea Filter and Strainer Anti slip grip Swiss Design Dishwasher safe Leakproof