BJPKPK Black Skinny Stainless Steel Tumblers 20 oz Slim Insulated Reusable Coffee Travel Water Tumbler Cup With Lid

**** The BJPKPK Black Skinny Stainless Steel Tumblers have garnered a positive reception among customers, with many praising their insulation capabilities and sleek design. Users appreciate how well these tumblers maintain the temperature of both hot and cold beverages, with specific mentions of maintaining the heat of hot drinks well into the afternoon. The taller, slimmer design fits comfortably in hand and is compatible with standard car cup holders, making it a practical choice for on-the-go use. While the tumbler's overall Construction, including the stainless straw and robust lid, has been highlighted as user-friendly and easy to clean, several customers pointed out areas for improvement. Notably, the sliding mechanism for the mouthpiece has seen some durability concerns, with instances of breakage shortly after purchase. Users have also voiced frustrations about cleaning difficulties, particularly with residue build-up beneath the sliding part of the lid. They suggest that a redesign for better access would enhance the cleaning experience. The design includes a secure lid with a rubber gasket that performs well for preventing leaks when not in use with the straw; however, users noted that tipping the tumbler with the straw inserted could lead to leaking. Additionally, the lid's small drinking hole has been a point of contention, as it restricts the flow of liquids, especially when ice is involved, making it less suitable for drinks that would typically require larger openings. Customers have expressed a desire for replacement lids to be available separately, signaling a need for improved durability and longevity. Despite these criticisms, the BJPKPK tumblers continue to be a favored choice for those looking for an insulated, stylish hydration solution. **