Additionally, this seems to create a more reliable seal and I haven't had issues with leaks while other traditional screw top bottles often have small leak issues, especially after you refill them regularly

Have purchased 3 and all 3 lost the seal and leak

The seal fell out

As a previous reviewer stated, losing the seal renders the water bottle useless.

The seal around the cap is defective

Seal fell out after 1 month use

The bottle is well worth the money, the only complaint I have is that the product is sometimes prone to leaking from the cap as it is a little hard to put on

Worked as it should, couldn’t find in retail stores