Leakproof Straw Lid

Our spill-free Straw Lid keeps your MiiR water bottle sealed, durable, and perfect for on-the-go sipping—customizable in black or white.

Product Description

Designed for a seamless, spill-free hydration experience, the MiiR Leakproof Straw Lid ensures no leaks—even at high altitudes. Whether you're on the go, in the office, or exploring the outdoors, this durable lid makes sipping effortless while keeping your bottle securely sealed. 

Mix & Match Colors: Available in black & white to customize your bottle

Straw Trim Guide: for best fit, trim your straw based on your MiiR bottle size:

12oz: 4.9in / 125mm (including Kids' Bottles)
16oz: 6.38in / 162mm
20oz: 7.75in / 197mm
32oz: 8.42in / 214mm
42oz: Do Not Trim

Not intended for use with hot or carbonated beverages. 

Care

Wash before first use. Hand wash recommended. Lid top rack dishwasher safe. Do not freeze, do not microwave, do not bleach, do not overfill.

CAUTION: 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 all orders within 2 business days (M-F) from the date of purchase. Orders placed after 7:00 AM PST will be processed the next business day.

Orders with personalized items take 3-5 business days to be processed.

Exceptions may occur during peak times (holidays, sales, special events, etc). If there is a question regarding your order, we will contact you directly. If you have questions about your order, please contact us at hello@miir.com. 

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.

Leakproof Straw Lid

Our spill-free Straw Lid keeps your MiiR water bottle sealed, durable, and perfect for on-the-go sipping—customizable in black or white.

Select a color:
Selected color:
Upload a custom design

Takeback program

Whether your MiiR is dented, dinged, or your style has changed, recycle responsibly with us and earn a $20 online store credit with Re:Claimed Takeback. We make it easy: send us your used MiiR, we’ll sort and recycle it, and you receive store credit.
Takeback Program
$20 credit on future purchases

Free Shipping

MiiR offers free standard ground shipping within the contiguous United States for orders $75 and over after discounts, before taxes. Standard ground orders under $75 are subject to a flat rate shipping fee of $9.95 USD.
Free Shipping
For US Ground on orders over $75

Lifetime Guarantee

Every MiiR product comes with a lifetime warranty. Should it ever fail, we’ll provide a replacement and recycle the original, so your favorite product stays in action for years to come.
Lifetime Guarantee
reduces waste on the planet
Certified B Corporation
The Climate Label
1% For the Planet Member
Certified Evergreen
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Product Description

Designed for a seamless, spill-free hydration experience, the MiiR Leakproof Straw Lid ensures no leaks—even at high altitudes. Whether you're on the go, in the office, or exploring the outdoors, this durable lid makes sipping effortless while keeping your bottle securely sealed. 

Mix & Match Colors: Available in black & white to customize your bottle

Straw Trim Guide: for best fit, trim your straw based on your MiiR bottle size:

12oz: 4.9in / 125mm (including Kids' Bottles)
16oz: 6.38in / 162mm
20oz: 7.75in / 197mm
32oz: 8.42in / 214mm
42oz: Do Not Trim

Not intended for use with hot or carbonated beverages. 

Care

Wash before first use. Hand wash recommended. Lid top rack dishwasher safe. Do not freeze, do not microwave, do not bleach, do not overfill.

CAUTION: 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 all orders within 2 business days (M-F) from the date of purchase. Orders placed after 7:00 AM PST will be processed the next business day.

Orders with personalized items take 3-5 business days to be processed.

Exceptions may occur during peak times (holidays, sales, special events, etc). If there is a question regarding your order, we will contact you directly. If you have questions about your order, please contact us at hello@miir.com. 

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.

MiiR - Design forward. Generosity driven.

$5.2M Given
120 Nonprofits
26 Countries
With design, generosity and sustainability at our core, MiiR adamantly and actively contributes to the prosperity of people and planet. Each year, we invest a portion of top-line revenue in nonprofit organizations whose work empowers communities while benefiting the health of our natural environments.

Stylish and Functional Design

Every MiiR product is designed in-house and emphasizes four design principles: minimal, sustainable, functional, and enduring. Available in 2 colors with cut-to-fit straws, the 2-part assembly (lid + removable straw) makes this leakproof straw lid easy to thread onto your water bottle and a breeze to clean.

Leakproof Convenience

Our Straw lid is truly leakproof, even at high alttitudes, and insulated to guarantee no spills wherever life takes you.

Responsibly Made

All MiiR products are sourced with Certified B standards and responsibly crafted with 18/8 Medical grade stainless steel and BPA-free construction to ensure pure taste and no flavor transfer between beverages.