With YETI's Rambler 26oz bottle packed, you're set for the day. Holding 769ml of liquid, it's just the right amount to not feel too heavy to carry, and still fits into backpacks. Like all the Rambler's, soft-drinks, beer, wine, smoothies, or mixed drinks are kept cold twice as long as plastic cups. This bottle has a TripleHaul™ cap, so it's 100% leakproof.