Stanley Quencher ($45)
This tumbler is internet-famous for good reason. It keeps beverages cold for 11 hours, is dishwasher safe, and is large enough she won't have to refill it multiple times per day — unless she's really working on her hydration, in which case, get it!
Editor Quote: "What don't I like about this Stanley tumbler is the real question. I've had it for about a week, and it's become my day-to-day companion, which is saying something because I'm the dehydrated one of the friend group. I'm low-key shocked to admit that it's earned a spot on my bedside table in case I wake up thirsty in the night, it spends all day on my desk throughout the day (filled with sparkling water from my apartment building), and I've even been bringing it to Orangetheory classes in the evening. Thanks to this water bottle, I'm confident I'm the most hydrated I've ever been." — Marisa Petrarca, contributing editor, Commerce
