A new twist on reuse.
KeepCup is finally ready to present Helix, a completely twist-fit leakproof thermal cup. The cup is made of double-walled stainless steel. The idea behind Helix is the "cup-to-bottle" system, which allows you to convert your cup into a thermal bottle. In this kit, you get a complete set with a sealed cup and a double-walled stainless steel bottle top.
Complete set with a thermal cup and both a twist-fit lid and a bottle top. The capacity with the bottle top becomes approximately 2 dl larger, so 0.5l for 12 oz and almost 0.7l for 16oz.