SodaStream carbonating bottles are made from high-strength PET, made to withstand the rigors of carbonation. These long-life bottles are reusable for up to three years. Fizz-preserving caps keep drinks fresh and fizzy longer than store-bought carbonated drinks. Two twin-packs are included, total of 4 bottles.

　　- Half liter bottle is great for on-the-go consumption

　　- Fizz-preserving cap included with each bottle

　　- Two twin-packs are included, for total of 4 bottles

　　- Bottles are BPA-free

　　- With SodaStream's reusable bottles, there are no store-bought empties to recycle or throw away