Why We Like The Race Vesta 5.0 When it's time to head to the starting line and get in the zone, you want to be as light and fast as you can be. This race-specific hydration pack sheds weight and boosts the breathability to cut down on discomfort and distractions when you're focusing up and pushing yourself to the max. But don't worry, it's still got enough storage for nutrition, hydration, and extra layers and gear. Details Light and breathable hydration pack designed for race day Flexible materials move with your body as you run (Not included) 500ml bottles keep water and electrolyte drinks separate Hydration-compatible design holds a 2L reservoir Trekking pole carries keep you prepared for tough terrain Comfort Cinch system pulls your load in closely in a flash Front stretch pockets hold a phone or energy gels Rear zippered pocket fits packable layers, hats, and gloves