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Description
xHydration that's ready for everyday life
Meet the Hydro Flask 21 oz Standard Mouth Bottle in fossil brown—built for daily adventures, commutes, and weekend getaways. The bottle pairs a durable stainless steel shell with a comfortable, flexible handle, designed for easy grabbing and on-the-go sipping. Double-wall insulation helps you stay hydrated without constant refills, making it a practical companion from early mornings to late workouts.
Temperature performance you can feel
TempShield double-wall vacuum insulation is at the core of this bottle’s everyday usefulness. It’s designed to keep your beverages at the right temperature for longer—cold drinks remain refreshing, while hot beverages stay cozy. The lightweight design supports long days out, whether you’re hiking, biking, or navigating a busy workday.
- Keep drinks cold up to 24 hours and hot up to 12 hours with accurate temperature retention.
- Lightweight, vibration-free design makes it easy to carry in a bag or pack.
Leakproof and travel-ready
Leakproof when closed, the Flex Cap helps you toss the bottle into a bag without worry. Its cupholder-friendly shape fits in most vehicles and backpacks, so hydration stays accessible whether you’re on the road or at the trailhead.
- Leakproof cap minimizes spills during transport.
- Cupholder-friendly design supports convenient hydration on the go.
Pure taste, easy care
The pro-grade stainless steel interior supports pure taste with no lingering flavors from previous drinks. It’s BPA-free and dishwasher safe, making cleanup quick and straightforward after meals, workouts, or travel. The bottle’s bright color stays vibrant with regular cleaning.
- Stainless steel construction preserves flavor integrity without odor transfer.
- Dishwasher safe for hassle-free cleaning and maintenance.
Designed for everyday versatility
With a 21-ounce capacity, this fossil brown bottle balances generous hydration with a compact profile. The comfortable handle invites one-handed carrying, while the classic look complements a wide range of styles—from gym bags to desk drawers.
FAQ
Q: Is the Hydro Flask 21 oz fossil brown bottle leakproof?
A: Yes, the Flex Cap is designed to be leakproof when closed, making it easy to carry.
Q: How long does it keep beverages cold or hot?
A: TempShield double-wall insulation keeps drinks cold up to 24 hours and hot up to 12 hours.
Shipping & Return
xReturns Policy
You may return most new, unopened items within 30 days of delivery for a full refund. We'll also pay the return shipping costs if the return is a result of our error (you received an incorrect or defective item, etc.).
You should expect to receive your refund within four weeks of giving your package to the return shipper, however, in many cases you will receive a refund more quickly. This time period includes the transit time for us to receive your return from the shipper (5 to 10 business days), the time it takes us to process your return once we receive it (3 to 5 business days), and the time it takes your bank to process our refund request (5 to 10 business days).
If you need to return an item, simply login to your account, view the order using the "Complete Orders" link under the My Account menu and click the Return Item(s) button. We'll notify you via e-mail of your refund once we've received and processed the returned item.
Shipping
We can ship to virtually any address in the world. Note that there are restrictions on some products, and some products cannot be shipped to international destinations.
When you place an order, we will estimate shipping and delivery dates for you based on the availability of your items and the shipping options you choose. Depending on the shipping provider you choose, shipping date estimates may appear on the shipping quotes page.
Please also note that the shipping rates for many items we sell are weight-based. The weight of any such item can be found on its detail page. To reflect the policies of the shipping companies we use, all weights will be rounded up to the next full pound.
- Choosing a selection results in a full page refresh.