Yes, and it's quite confusing as they look almost identical (18, 21 and 24 oz).I know late post but I have a hydroflsk 24 oz that does not fit. Are they made in different dimensions?
I have the 21 oz standard mouth and it fits almost perfect. I believe the 24 oz is too tall and not sure if the wide mouth shoulder would be narrow enough at the top of the door pocket.
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