AQUAPHILE Insulated Tumbler with Leak-proof Lid and Straw, 40 oz Insulated Stainless Steel Coffee Mug with Handle, Travel Coffee Mug，Rubine Red

Love this cup. Beats the price of the popular brand version. The only thing I would change is the STRAW OPENING on the lid. Unlike some reviewers (even with poor hand strength) I had no issue turning/opening the lid. (There may have been a design modification.) The cup has a tight seal and comes with 3 straw options (2 metal styles, 1 standard plastic a straw cleaner). I find it to be well insulated, keeping liquids cool all day. However, the STRAW OPENING is slightly large and liquids can spill if it tips over in your tote. 2 plastic tips are provided for use (not black as featured). I suppose these are meant to resolve "part" of the spill issue, but in my opinion, they are impractical for use due to their small size (similar to a plastic cigar tip) with nowhere to hang or attach while drinking. My solution was to purchase a variety set of attachable (40mm) straw covers online -- ones with the ring that slides down the straw with connected cap. While these still don't fit as snuggly as I would like, I feel more confident about spillag. I still take precaution, keeping my cup in an upright position or outside pocket of my tote.