Hydro Flask 12 oz Mug — Birch insulated stainless steel, TempShield™ double-wall, Closeable Press-In Lid

The Hydro Flask 12 oz Mug in Birch is a compact stainless-steel insulated cup designed to keep hot beverages warm for hours while minimizing spills with a closeable press-in lid.

This 12-ounce mug combines lightweight portability with Hydro Flask’s TempShield™ double-wall vacuum insulation and an 18/8 pro-grade stainless steel build for durability and pure taste. The soft-touch exterior improves grip and comfort, while the Closeable Press-In Lid helps control splashes and maintain temperature. Sized to fit many car cup holders and to deliver the right single-cup portion, it’s ideal for daily commutes, home coffee rituals, or short outdoor outings.

How does the mug keep drinks hot and fresh?

TempShield™ double-wall vacuum insulation creates an airless barrier between the beverage and the outside environment, which slows heat transfer. The closeable lid limits exposure to cooler air and reduces heat loss from the top. Together they retain heat longer than single-wall containers without imparting metallic flavors.

• TempShield™ vacuum insulation for extended temperature retention
• Closeable Press-In Lid reduces heat escape and splashes
• 18/8 pro-grade stainless steel preserves flavor and resists corrosion

Is the lid spill‑proof and easy to use on the go?

The Closeable Press-In Lid tames splashes and gives you the option to close the opening when moving. It’s straw-compatible for a quick sip option and designed for simple press-in operation rather than a complicated twist. Although it limits spills, it’s not fully leakproof when tipped upside down or carried in a full bag.

• Press-in action for quick open/close control
• Straw compatibility for hands-free sipping
• Reduces splashing but not guaranteed leakproof when inverted

How durable and safe is the construction?

Built from 18/8 pro-grade stainless steel, the mug resists dents, corrosion and flavor transfer, so beverages taste like they should. The soft-touch exterior improves handling without sacrificing toughness, and all materials are BPA-free. Note that the mug is not suitable for use on stovetops, in microwaves or freezers.

• 18/8 stainless steel for long-lasting durability and pure taste
• Soft-touch exterior for improved grip and comfort
• BPA-free components; follow care guidelines to avoid heat exposure methods not recommended

How easy is it to clean and maintain?

The mug’s stainless interior wipes and rinses clean easily; the lid components can be rinsed or hand-washed to remove residue. Because of the insulation and lid construction, hand washing is recommended for both longevity and to ensure gasket areas are fully cleaned. Avoid abrasive pads or harsh cleaners to protect the soft-touch finish and the sealing surfaces.

• Hand wash lid and mug for best results; stainless interior rinses clean
• Avoid abrasive cleaners to preserve finish and seals
• Inspect and remove any trapped debris around the lid gasket regularly

Who this mug is for: The Hydro Flask 12 oz Mug in Birch is a great choice for coffee and tea drinkers who want a well-built, travel-friendly single-cup option that balances temperature retention with a compact footprint. It suits commuters, small-household routines, office desks, and anyone who prefers a durable, reusable cup that minimizes flavor transfer and offers simple splash protection without the bulk of larger insulated bottles.