50oz Bertha Boot for Simple Modern s

This boot does not fit any of my 50oz Simple Modern Treks. It falls completely off! It fits OVER the big Bertha clear (which fits al my 50oz cups perfectly) and looks absolutely ridiculous like that. I could return but I bought them on clearance and there is a percentage that goes back to restocking when you return (at least that’s what I read)

Fits perfectly! Only one I found to fit my 50oz simple modern bottle!

It doesn’t even fit my 50oz simple modern tumbler!