Packs down to almost nothing when it's empty, this flask is made of durable material that's soft and textured in your hand. A large flow bit valve delivers a substantial flow rate.
- Body is 0.4mm BPA-free thermoplastic polyurethane
- High-flow, silicone bite valve with a twist shut off
- Freeze or fill with warm water (max temp 60°C / 140°F)
