- 500ml Hike Stainless Steel Flask Tumbler | 9 Hrs Hot & 13 Hrs Cold | Double Wall Vacuum Insulated | Leakproof & Wide Mouth | Fits in Car Holders, for Home, Office, Sports, Black

Quality of borosil is a very good

Writing this after 2 weeks of use It's a good tumbler for your coffee or cold shakes it keeps the drink hot overnight not the same temperature as you put them in but hot enough to drink and keep them cool for a bit longer it's going for yor long car rides or on the way coffee. It's easy to use, the. drinking mechanism is similar to that of a normal cup it has small opening which can be accessed by pressing a button so the it has worked perfectly without any problem It's a bit tricky to clean but you can clean the bottom half like a normal bottle and the cap by rinsing the water through the opening It looks awesome with metallic finish and feels good to hold It keep the drink hot and cold without you feeling the heat through the tumbler Size is decent for everyone's coffee needs It's a value for money product at this price with a added bonus of coming from a well recognised company

While it does insulate beverages and keep them warm/cold (Although I have not tested it to the limit of the claimed time), everything else about this product is absolutely awful. The lid is excessively overengineered but still sucks. The button to open/close it is flimsy and looks like it will break within a few weeks. The sipper point is badly shaped and has terrible placement, almost guaranteeing a minor spill every time you take a sip. The lid also retains liquid inside it even if it is shut and is an absolute wonderland for breeding bacteria. This water retention makes it impossible to clean properly and will lead to you drinking a cocktail of fungus and other delightful microbes within a few weeks of daily usage. Expected much better from a brand like borosil, but this is an absolutely brain dead design that is more focused on aesthetics than actual functionality. One of the worst products I have ordered this year. Avoid at all costs. I am looking for a better replacement and will edit this review if one is found.

Good product, worth it for me!! Why did you pick this product vs others?: Good brand name and rating. Functionality: Good for keeping cold items cold. Value for money: Worth it.

Premium look and totally worth the price. I have not tested this since it is a gift but I do own borosil coffeemaker mocha 300 ml, which is totally worth the price. So I know this gift will be well used.

Despite a big brand, product is not useful to store Hot milk/water for long hours as committed in the description. It will be luke warm within 2 hours

Require improvement as it loses temperature after three four hours.

This is one of the best flasks I have bought. The flat top button ensures that you can drink without your nose getting hit. It's leak proof and thermal insulating lasts hours. Easy to clean. The top washer comes loose though.