- Shape-Shift™ baffle locks for a slim profile and increased stabilization; unlocks for full volume and reverses for easy cleaning

- Slide-Seal™ top opens wide for easy filling and closes tight for a leakproof seal

- High-flow Blaster™ bite valve self-seals after each sip and features a twist on/off bar to prevent leaks when not in use

- Dust cover protects silicone bite valve from collecting dirt

- Flexible 91 cm drink tube insulates in hot weather and offers protection in tough conditions