Tasse thermique en acier inoxydable 18,2 oz BergHOFF Leo 18,2 oz, rose

This is good but not 100% leak proof.

I love the flask and use it to take my morning coffee with me on the bike. It doesn't leak and pours very easily but the intricate push button cannot be cleaned on the inside so it becomes a health hazard with dirt building up inside and I haven't found any cleaning instructions yet for this.