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
Less Weight. More Miles. 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.