Contigo bottles (and coffee mugs) have proven really nice to use, cleverly designed and very durable. My coffee mug has been with me 6 years and despite having a fancy mechanism it works 100% despite being used and cleaned almost every day at least once. The water bottles have been with us 2 years but they’re doing just as well. Very impressed with em.

I wouldn’t recomend it for backpacking (not optimised for weight) or if you are gonna pound the hell out of it (a simpler design is best for heavy punishment) but for general use I think it’s the best option.