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Hydro Flask 21oz Lightweight Trail Series Standard Flex Cap

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Enough capacity to fuel your next big adventure, our 24 oz Lightweight Trail Series™ bottle is 25% lighter than our other 24 oz wide mouth bottles thanks to an innovative stainless steel design. Engineered to deliver the same cold refreshment you expect from Hydro Flask but without the weight, the Trail Series™ makes it easy to take your cold hydration as far as your spirit of adventure takes you.

  • 25% lighter than our 24 oz wide mouth bottles to keep you going further
  • Fits most backcountry hydration filters
  • Thinner 18/8 stainless steel to reduce weight while maintaining durability
  • TempShield™ insulation keeps beverages cold up to 24 hours and hot up to 12 hours
  • Flexible perforated strap and aluminum pivots for added weight loss
  • Compatible with our Wide Mouth Straw Lid
  • Hand wash only