Hydro Flask 21 oz. Lightweight Wide Mouth Trail Series

Less Weight. More Miles.

Durable, yet 25% lighter than our other 24 oz bottles, this lightweight stainless steel insulated water bottle is made for hiking and backpacking. The wide opening lets you add ice, and the streamlined designs fits easily in your pack.

• Lightweight hydration to keep you going
• 25 percent lighter than our other 24 oz Wide Mouth bottles
• TempShield®️ double-wall vacuum insulation keeps drinks cold up to 24 hours, hot up to 12
• Made with 18/8 pro-grade stainless steel for durability, pure taste and no flavor transfer
• Flexible perforated strap and aluminum pivots to minimize weight
• Leakproof when closed
• Bottle fits most backcountry water filters
• BPA-Free