Why so expensive? i can get it cheaper from hydro flask, rei, dick sporting goods, etc.

Sure you can , If dick sporting goods has the same brand and style

Is this product authentic? Made by Hydroflask?

Hello Robert - Wendy from Tall Ridge here - This Hydro Flask Standard Mouth Insulated Sport Cap purchased from us is authentic. We are an authorized Hydro Flask dealer. Please feel free to check us out. We want you to feel comfortable with your purchase. All Hydro Flask products purchased from us are authentic Hydro Flask products.

Does this work for the 64 oz growler?

Hello James - Wendy from Tall Ridge here - The Hydro Flask 64 ounce Growler is a Wide Mouth. The Hydro Flask Insulated Sport Cap is for the Standard Mouth bottles only.

If the 21 oz bottle you have has a standard opening, not a wide opening, it should fit.

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💧 Sip smarter, stay cooler — upgrade your hydration game!

CLEAN IN A FLASH - Dishwasher safe for hassle-free maintenance
EFFORTLESS HYDRATION - Leakproof Flex Straw Cap designed for on-the-go convenience
STAY CHILL SIP EASY - TempShield™ double-wall vacuum insulation locks in cold for hours
SEAMLESS COMPATIBILITY - Perfectly fits all Standard Mouth Hydro Flask bottles
SAFE SIPPING GUARANTEED - Crafted from BPA-free, non-toxic materials for your health

The Hydro Flask Standard Mouth Flex Straw Cap is a leakproof, insulated accessory designed to fit Standard Mouth Hydro Flask bottles. Featuring TempShield™ double-wall vacuum insulation, it keeps your beverages cold for hours. Made from BPA-free, non-toxic plastic and dishwasher safe, this lightweight (5g) cap offers convenient, safe, and easy hydration on the go.

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Are the products genuine and authentic?+

Yes, all products are sourced directly from authorized retailers in the US, UK, UAE and India. We maintain strict quality control processes and verify each product before shipping. All items come with applicable manufacturer warranties and are covered by our standard return policy.

How long does delivery take and is it reliable?+

Delivery times vary by destination country, typically ranging from 3-9 business days. Each order is fully trackable through our system. We handle all customs clearance and use reliable courier partners for last-mile delivery. You'll receive regular updates about your order status via email and our app.

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Desertcart is an international e-commerce platform operating since 2014. We securely process thousands of orders globally each day. Every product goes through our quality verification process before delivery, and we provide end-to-end order tracking, 24/7 customer support, and a comprehensive returns policy to ensure a safe shopping experience.

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Our prices include the product cost, international shipping, import duties, customs clearance, and local delivery charges. We handle all customs and import procedures, ensuring there are no hidden fees upon delivery. PRO members receive additional benefits including free shipping.

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Brand	Hydro Flask
Capacity	510 g
Colour	Black
Recommended Uses For Product	Coffee, Soup, Tea
Special Feature	TempShield™ double-wall vacuum insulation
Age Range (Description)	Adult
Item Weight	5 g
Material	Plastic
Product Care Instructions	Hand Wash Only
With Lid	Yes
Is Dishwasher Safe	Yes
UPC	810028842878
Global Trade Identification Number	00810028842878
Country of Origin	USA
Item model number	SFS001
ASIN	B09D8RPYKJ

Hydro Flask Accessory Standard Mouth Flex Straw Cap Black - for Standard Mouth Bottles - Insulated, Dishwasher Safe, BPA-Free, Non-Toxic

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