Skywerc 40 oz Tumbler With Handle and Straw Lid | Double Wall Vacuum Insulated Travel Mug | Stainless Steel Water Bottle Cup | Keeps Drinks Cold up to 34 Hours | Cupholder Friendly | Ocean

The Skywerc 40 oz Tumbler With Handle and Straw has received mixed reviews from customers. Some users found the straw position inconvenient, as it is located either next to the handle or directly opposite, and expressed difficulty in removing the lid for refills. Additionally, there were comments about the thermos not being leakproof, leading to spillage when drinking from the straw. However, some customers were pleased with the product's performance, stating that it kept their drinks cold for extended periods, with one user even recommending it over a Stanley cup. Overall, while there were some criticisms, many customers were satisfied with the tumbler and its ability to retain the coldness of beverages. **