Enter: The Stanley Quencher H2.0 FlowState™ Tumbler (40 oz) and the Hydro Flask 40 oz Travel Tumbler. These two are the veritable "It Girls" of water bottle culture, so of course, I had to know ...

instead of $45 Stanley Quencher Tumbler 30 oz for $27, instead of $35 Yeti Rambler 42 oz Tumbler for $36, instead of $45 Yeti Rambler 30 oz Tumbler for $38, instead of $45 Hydro Flask All Around ...

The Stanley cup is a bestseller on Amazon at £41.30 with over 1,000 sold over the past month. If shoppers need a thermos flask for the gym, work or travel, the product page boasts 'you'll want ...