the screw top lid is large and easily removed and reclosed without discomfort
Top quality!  No leakage.  Ridged enough to not be flopping around when filling yet malleable enough to contour to any surface when in use.  I purchased another of these for a family member that struggles with arthritis/dexterity issues; the screw top lid is large and easily removed and reclosed without discomfort.
Rating: 5 stars