Is there a plug to keep the straw hole from leaking if there is no straw in it?

There isn't a plug, but it has a silicone "+" shaped gasket that you shove the straw through (similar to fast food lids). It is thick enough to prevent an accidental spill, but if a full drink is laying on it's side for too long, the liquid will seep through it.

Is the mouth wide enough to work with an aeropress?

The double wall insulation makes the Iron Flask Tumbler sweat-free! It keeps your drink COLD for up to 20 hours, and HOT for up to 5 hours (depending on size).

Is ironflask American made?

I don't see anything on the cup, or on their website, that states where the products are made. So probably China.

Is there any give to the straw, like with rubber or softer plastic, or is it pretty rigid? Thx

It is pretty rigid but I only used it a few times. I have used the flask for mostly coffee and not to drink from the straw. Not sure how it will be after regular use.

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Description

💧 Stay cool, stay hot, stay ahead with Iron Flask Classic!

ECO CHIC HYDRATION - BPA-free, reusable, and hand-wash only for a sustainable lifestyle that’s as smart as it is stylish.
SLEEK MEETS DURABLE - Powder-coated stainless steel with laser-engraved logo offers a stylish, scratch-resistant finish that stands out in any meeting or adventure.
TRAVEL READY DESIGN - Cup holder-friendly size and built-in rubber coaster bottom ensure your tumbler stays secure and silent on the go.
LEAKPROOF VERSATILITY - Two insulated lids included—splash-proof straw lid and leak-proof flip lid—so you never have to compromise on convenience or style.
ULTIMATE TEMPERATURE CONTROL - Double-walled vacuum insulation locks in cold for 16 hours and hot for 4 hours—hydrate like a pro all day long.

The IRON °FLASK Classic Tumbler is a 24 oz vacuum insulated stainless steel travel mug featuring double-wall insulation that keeps beverages cold for up to 16 hours and hot for up to 4 hours. Designed with a powder-coated exterior and laser-engraved logo, it combines durability with sleek style. It includes two leakproof lids—a splash-proof straw lid and a flip lid—and fits most car cup holders. The tumbler’s rubber bottom prevents slipping and noise, making it the perfect companion for professionals on the move.

Specifications

Reusability	Reusable
Finish Types	Powder Coat
Product Care Instructions	Hand Wash Only
Material Features	Insulated
Material Type	Stainless Steel
Item Weight	1.12 Pounds
Number of Items	1
Item Dimensions W x H	3.5"W x 7.8"H
Unit Count	1.0 Count
Capacity	16 ounces
Shape	Round
Pattern	Solid
Theme	Travel
Occasion	Anniversary,Baby Shower,Bachelor Party,Bachelorette Party,Baptism,Bar Mitzvah,Birthday,Bridal Shower,Christmas,Cinco de Mayo,Cocktail Party,Communion,Confirmation,Easter,Engagement,Father's Day,Funeral,Gender Reveal,Graduation,Grandparents Day,Hanukkah,Halloween,Housewarming,Independence Day,Kwanzaa,Memorial Day,Mother's Day,New Year,Passover,Retirement,St. Patrick's Day,Thanksgiving,Valentine's Day,Wedding
Color	Cotton Candy
Style Name	24 Oz - Black Lids
Additional Features	Cold 16 Hours, Leakproof, Hot 4 Hours, Double Wall, Insulated

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