Mesa Loop mit abgedecktem Strohhalm

The airflow relief valve makes a bigger difference than I expected, no more fighting to get water up the straw. The contoured straw opening is wide enough that I can actually sip while walking without stopping. Been using it daily for two weeks and it hasn't leaked once.

The twist-in locking straw actually stays put, which I didn't realize I needed until I used it. Sipping takes way less effort than my old cup thanks to the wider contoured opening. Been using it daily for a week and no leaks yet.

I didn't think a straw could make much difference, but the wider opening on this one really does mean I barely have to work to sip. The covered top is a nice touch too since I can toss it in my bag without worrying about leaks.