Aero Flask

Regular price $29.95
Regular price Sale price $29.95
Sale Sold out
6 reviews

Aero Flask

Regular price $29.95
Regular price Sale price $29.95
Sale Sold out
6 reviews
Select a color:
Selected color:

Orders over $75 ship free!
(U.S. standard ground only)


Product Description

The Aero Flask from MiiR has arrived! Built with durable stainless steel that won’t transfer flavor between fluids, the latest addition to MiiR’s barware collection comes in a sleek matte black finish and single wall ergonomic design that fits comfortably in your hand. Sip your spirits in style. Up to 8 ounces in a single fill.

The wide-mouth, stay-open hatchback cap makes refills simple and easy. And you’ll never have to worry about losing the cap –– it’s attached! Focus on finding the vibes, whether that’s in your backyard or the backcountry. The Aero Flask is the perfect on-the-go companion for all your adventures and after-hours aperitifs.


Keep your drinks tasting the way you intended by washing your Aero Flask between uses. Hand wash recommended. Top rack dishwasher safe. Wash before first use. Do not freeze, do not microwave, do not bleach, do not overfill.

CAUTION: This product is single wall, non-insulated. Not intended for use with hot beverages. Choking hazard, may contain small parts not suitable for children under 3 years. 

Shipping & Returns

Do I have to pay for shipping?

MiiR offers free standard ground shipping within the contiguous United States for orders $75 and over. Standard ground orders under $75 are subject to a flat rate shipping fee of $9.95 USD. Expedited and international rates, if applicable, will be calculated in the checkout once you have entered your shipping address.  A shipping charge will be applied to your final order in all other scenarios.

When will my order ship?

We do our best to ship your order within 1-2 business day of purchase, M-F. Exceptions may occur if there is a question regarding your order, in which case we will contact you directly.  If you have questions about your order, please contact at

MiiR uses FedEx, UPS, and USPS (depending on the best rate) for shipments within the contiguous United States unless an expedited option is selected by the customer.

2-Day and Overnight orders should be placed by 7:00 AM PST for quickest delivery. Expedited orders placed after 7:00 AM PST will require an additional business day for processing. This excludes weekends and holidays. All "Delivery by" dates are estimates and not guaranteed. 

Shipping to Hawaii 

Shipments to Hawaii will be automatically upgraded to a 2-day delivery service. Furthermore, please note that shipping remains free for orders over $75.

Hatchback Cap

The Aero Flask features a custom “stay-open” attached hatchback cap design that only closes when you want to. No more unscrewing your cap every other minute. And with its attached design, you’ll never have to worry about losing it.

Ergonomic Design

Built with an ergonomic design, the Aero Flask is crafted with a sleek design that more naturally fits in your hand. With ease of comfort, you only have to worry about crafting the perfect flask cocktail.

Wide Mouth

The Aero Flask’s wide mouth open is all about convenience — fill up or empty out your flask faster than ever, and without a funnel.

Generosity Driven

Every MiiR product sold helps fund nonprofit organizations that work to empower communities, while investing in the health of our natural environments.

Customer Reviews
4.2 Based on 6 Reviews
5 ★
4 ★
3 ★
2 ★
1 ★
Write a Review Ask a Question

Thank you for submitting a review!

Your input is very much appreciated. Share it with your friends so they can enjoy it too!

Filter Reviews:
  • ounce flask
  • pocket
  • flask
  • mouth
  • experience
  • gift
  • hand
Tor B.
United States

My Personalized Flask is perfect, for me

What a great benefit to be able to personalize my MIIR Flask with a funny quip.

United States United States


The flask is nice and feels good in the hand. But I was very disappointed that the cap and holder are plastic and I’m concerned that they will not hold up over time

Tommy SVG verified by SHOP
United States United States

Nice light and premium flash! Love the design and shape

Maximilian U.
United States United States

Great Miir feel, wrong shape

Really enjoyed using this product but the shape just wasn’t quite right for carrying like a flask. It really sticks out in a pocket or jacket. The lid and sip is really nice tho and it was perfectly air tight.

United States United States

Handy, Sturdy

This 8 ounce flask was purchased as a gift so I cannot offer personal experience with it. That said, it is made to be sturdy, long-lasting. It fits well in the hand and would fit well in a pocket for carrying.