21 oz Lightweight Standard Mouth Insulated Trail Series Bottle

SKU: LW21LW081
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Product details

Less weight. More backcountry.

Ridiculously light, and durable enough for any trail, the 21 ounce Standard Mouth Lightweight Trail Series™ bottle is 25% lighter than our other 21 ounce bottles and provides the best cold hydration experience for your longest adventures. The narrow Standard Mouth opening is ideal for quick sips on the trail, and the slim bottle profile stashes easily into a pack pocket. Engineered to deliver lasting cold refreshment with TempShield™ insulation in an innovative lightweight stainless steel design.


  • Lightweight: 25% lighter than Hydro Flask's other 21 ounce standard mouth bottles means this lightweight stainless steel bottle weighs less so you can do more.
  • Stainless Steel Construction: 18/8 pro-grade stainless steel walls are thinner to reduce weight while maintaining durability.
  • Lightweight Flex Cap: Lightweight cap with a flexible perforated strap and aluminum pivots reduces weight in our leakproof design.


  • Ideal for lightweight hydration to keep you going further
  • Durable 18/8 Pro-Grade Stainless Steel construction
  • TempShield™ insulation eliminates condensation and keeps beverages cold up to 24 hours and hot up to 12 hours
  • Flexible perforated strap and aluminum pivots for added weight loss
  • BPA-Free and Phthalate-Free

Size & Dimensions

  • Volume: 621 mL
  • Diameter: 2.8"
  • Height: 10.2"
  • Weight: 9.6 oz


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