A sleek 40 oz Hydro Flask Wide Mouth Bottle with a Flex Straw Cap, showcasing the iconic logo, stands out against a white background. A black 40 oz Hydro Flask Wide Mouth Bottle with Flex Straw Cap, featuring a sturdy handle and flip-top lid. It has a white logo of a stylized person with arms raised near the top, and the brand name is printed at the bottom for easy filling and cleaning. A hand showcases a sleek black Hydro Flask with its logo and text. The Wide Mouth Bottle with Flex Straw Cap, 40 oz is perfect for on-the-go use against a clean white backdrop.
A sleek 40 oz Hydro Flask Wide Mouth Bottle with a Flex Straw Cap, showcasing the iconic logo, stands out against a white background.

Hydro Flask Wide Mouth Bottle with Flex Straw Cap, 40 oz

40 oz

Why we love it

  • Made with TempShield double-wall for excellent temperature management.
  • BPA-Free and dishwasher safe, promoting healthy and convenient use.
  • Strong commitment to environmental sustainability through reusable and smart packaging.
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$49.95 $49.95 Save 0%

Wide Mouth Bottle with Flex Straw Cap, 40 oz $49.95

Free carbon neutral shipping on orders $29+. Arrives in 3–5 days. Free, easy 30-day returns.

Flip it and sip it.

Flip it and sip it with the Hydro Flask 40 oz Wide Mouth Bottle With Flex Straw Cap. With a comfortable, flexible handle, the closeable, leakproof straw cap is easy to open and close with one hand, for on-demand hydration. Double-wall insulation keeps drinks cold up to 24 hours for cool refreshment. The insulated bottle easily fits ice cubes and is dishwasher safe.

  • 24 hours cold.
  • TempShield®️ double-wall vacuum insulation.
  • Leakproof when closed.
  • Pure taste, no flavor transfer.
  • BPA-Free
  • Dishwasher safe
  • Flex Straw Cap not intended for use with hot liquids.
  • Not for use on a stove, in a microwave or freezer.
  • Bottle fits all Wide Mouth caps and lids.

Hydro Flask is committed to making contributions towards the goal of a circular economy thourgh reusable products, material choices and smart packaging. We have eliminated single-use plastic packaging for more than 90% of our products. Every product is made with a TempShield double-wall that protects temperatures for hours and are BPA-Free and dishwasher safe.

Steel, Powder Coat

Dishwasher safe cap is not intended for use with hot liquids and not for use on a stove microwave or freezer.

Grove Values

A HIGHER STANDARD

Healthier cookware, pantry staples, and more.

From snacks to saucepans, every product is reviewed to meet strict ingredient and material standards — reducing exposure to unwanted additives and plastics in your food and kitchen.

Screened for unwanted additives

Made without BPA, PFAS, melamine, or artificial preservatives

Built for better cooking

Crafted from stainless steel, silicone, ceramic, and glass — not plastic

Less plastic, fewer microplastics

Reduced-plastic options that help limit waste and microplastic exposure

Go Beyond Plastic™ and microplastics.

Plastic products break down into microplastics that can affect human health.

Grove Co. is on a mission to reduce plastic in home essentials — for both people and for the planet.

Learn more on the Home Planet blog