The calabash is the optimal accessory to use! Why ? Like any plant, mate swells when infused. It needs space to release all its flavors. By opting for this accessory, the mate has all the space it needs to infuse freely. With its sleek and aesthetic design, this insulated double-walled stainless steel calabash equipped with a waterproof seal will allow you to keep your mate warm for long hours. It is ideal for consumption throughout the day whether you are in the office or on the go. Unlike traditional calabashes (wood, pumpkin, etc.) which absorb the flavors of mate and require special maintenance, stainless steel is a neutral material and allows flavors to be mixed without altering the taste. Also neutral for your health, it is guaranteed BPA-free. Keep warm for 6 hours.