Do you need a new gasket to continue using your Futura cap?

Here you have the spare part you need.
 

CHARACTERISTICS
Material: Silicone
Dimension 12 x 8 x 0.5 cm
Weight 10 gram
Only suitable with Laken TTF cap
Not suitable for dishwasher. Before the first use and for the daily cleaning, do hand-wash with diluted soap in lukewarm water.
CLEANING AND MAINTENANCE:
Accessories are not dishwasher safe
Before the first use and for daily cleaning, we recommend washing by hand with soap diluted in warm water
Not suitable for microwave
We recommend hand washing all covers and textile elements, with warm water and neutral detergent. Do not use bleach, dryer