Now This is How to Stay Hydrated During a Workout…

I drink a lot of water each day. And while my usual Nalgene fits the bill for staying hydrated, when I’m working out, driving or feeling particularly clumsy, it’s hard to drink out of something with such a wide mouth without spilling water all over yourself. Tell me I’m not alone here.

Lately, there’s been all kinds of new water bottles coming out with filters, straws and the like, all enticing you to drink more. And even though most of them are BPA-free, I like the idea of using something that’s totally plastic-free. And something that doesn’t make me look like I have the coordination of an infant (even if I do). And something that stays cold. That’s not too much to ask, right?

The Under Armour 18-oz. Vacuum Insulate Bottle with Flip Top Lid may not have the flashiest of names, but it gets the hydration job done. And in a surprisingly fun way (if you’re amused with a flip-top lid, like I am). With Thermos vacuum-insulation technology (fancy!), this water bottle keeps your water cold for up to 12 hours. Twelve hours! It also has an ergonomic design that’s tapered in the middle for ease of holding, and it has a spill-proof lid. No straw to suck through (when I want water, I want water), you just flip the lid and guzzle down.

Oh, and the Thermos peeps did a study finding that cold water (40 degrees) helps to keep your core temperature down and increase athletic performance, so this might even help your workouts. While I can’t say that I’ve noticed the colder water making a difference in my sweat sessions, I certainly prefer drinking cold rather than tepid or warm water when I’m working out, so I appreciate that the bottle does keep my water cool. This Under Armour water bottle is a bit of a splurge at $27.99—especially for holding just 18 ounces—but I think it’s worthy of its price tag, mostly because hitting the button to flip the lid is SO MUCH FUN.

Do you have a favorite water bottle? Are you picky about its features like I am? Think colder water helps your workout performance? Discuss! —Jenn