The first delivery of the seal was broken. (Sent) New bottle came with an intact seal. (Amazon TOP) Now the bottle. After 2 weeks of daily use, it is still you and easy to clean. (5 stars) Unfortunately SALEWA has saved the sealing ring too much, so that it has begun to develop after 2 weeks game. Through this game, it may in inattention to the sealing ring is clamped come from the closure and no longer seals properly and may even be damaged. (-3 Stars) It would be advisable to make the bottle 2-4 expensive and for a proper use silicone seal or revise the closure I'll look for me even know if there is a suitable DIN silicone sealing ring for this bottle. Addendum: Now have complained since the closure for daily use is unsuitable the bottle. For Hobbie activities is bistimmt well. Pay me now the Klean Kanteen bottle pick and see if the have made it better.
