
Hydro Flask
Hydro Flask 40 Oz Lightweight Trail Series Wide Flex Cap Serpentine- Hiking Water Bottle
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Size: 40 Ounces
Price checked
Every Hydro Flask product we track, with the ones currently below their normal price first.
Products tracked
121
On sale now
41
Best discount
37%
Median price
$34.95
Comparison
Pick the cap style around how you drink: the wide-mouth Flex Straw Cap is the clearer fit for one-handed cold sipping, while the Standard Mouth Flex Cap is the maker-supported option for hot drinks.
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Comparison
Both are 24 oz stainless steel bottles, but their lids suit different routines. Owala's push-button FreeSip offers a straw or drinking spout for one-handed access; Hydro Flask's screw-off Flex Chug setup has a simpler chug path that takes two hands.
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Comparison
This is a choice between two documented lid interfaces and two body profiles, not a tested heat- or leak-performance ranking.
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Comparison
Choose the Stanley if its two-part lid gives you the sip setup you want; choose the Hydro Flask if you prefer the documented twist-open/twist-close Flex Sip routine.
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Comparison
Check your actual cupholder against the published dimensions: Hydro Flask says the Travel bottle’s tapered bottom fits most holders, while Owala lists a shorter but wider 32 oz FreeSip.
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Comparison
There is no universal winner. The YETI is the larger 20-ounce tumbler with a sliding, splash-resistant but non-leakproof lid; the Hydro Flask is a 12-ounce bottle with a twist-to-open Flex Sip lid described as leakproof when closed.
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41 deals · 80 more tracked

Hydro Flask
Size: 40 Ounces
Price checked

Hydro Flask
Size: 24 Ounces
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Hydro Flask
Size: 24 Ounces
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Hydro Flask
Size: 32 Ounces
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Hydro Flask
Size: 21 Ounces
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Hydro Flask
Size: 16 Ounces
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Hydro Flask
Size: 32 Ounces
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Hydro Flask
Size: 32 Ounces
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Hydro Flask
Size: 24 Ounces
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Hydro Flask
Size: 32 Ounces
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Hydro Flask
Size: 24 Ounces
Price checked

Hydro Flask
Size: 12 Oz
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Hydro Flask
Size: 32 Ounces
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Hydro Flask
Size: 24 Ounces
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Hydro Flask
Size: 20 Oz
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Hydro Flask
Size: 24 Ounces
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Hydro Flask
Size: 40 Ounces
Price checked
These sit at or above their own normal price. We keep them here so you can see the current price and decide whether to wait.

Hydro Flask
Size: 6.7 Ounces
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Hydro Flask
Size: 32 Ounces
Price checked

Hydro Flask
Size: 32 Ounces
Price checked

Hydro Flask
Size: 40 Ounces
Price checked

Hydro Flask
Size: 32 Ounces
Price checked

Hydro Flask
Size: 20 Ounces
Price checked

Hydro Flask
Size: 5 L
Price checked