Review on Black Hydro Flask Insulated Water Bottle with Wide Mouth and Straw Lid for Sports by Carlos Deuschle

I got a new wide neck black straw cap and it worked fine for a few minutes until I started squeezing as if the seal with the mouthpiece and o-ring was failing. At first I thought it was an o-ring so I replaced it with an o-ring from earlier models and it still didn't work. I compared the old and new mouthpieces and noticed that the pivot point of the new one was a few millimeters smaller. I don't know if this is a design flaw or if I just received a defective product.