HYDRO FLASK – 21 OZ LIGHTWEIGHT STANDARD FLEX CAP TRAIL SERIES-OBSIDIAN

Our unique double wall vacuum insulation protects temperature for hours. Cold drinks stay icy cold and hot drinks stay piping hot so you can stay refreshed for any adventure.

Product Benefits

• Ideal for lightweight hydration to keep you going further
• Fits most backcountry hydration filters
• 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
• Compatible with our Wide Mouth Straw Lid

Size & Dimensions