Hydro Flask Lightweight Wide Flex Cap Tourmaline 40 oz

Built to go wherever the day takes you, our 40 oz Lightweight Wide Mouth Trail Series bottle provides a substantial amount of hydration. Thanks to an innovative stainless steel design it’s engineered to deliver the same cold refreshment you expect from Hydro Flask, but is 20% lighter than our other 40 oz bottles.

- Lightweight hydration to keep you going
- 20 percent lighter than other Hydro Flask 40 oz Wide Mouth bottles
- 24 hours cold, 12 hours hot
- TempShield double-wall vacuum insulation
- Leakproof when closed
- Pure taste, no flavor transfer
- Durable stainless steel
- Flexible perforated strap and aluminum pivots to minimize weight
- Bottle fits most backcountry water filters
- BPA-Free