40oz Flo Tumbler Lid Mermaid Straw
40oz Flo Tumbler Lid Mermaid Straw
40oz Flo Tumbler Lid Mermaid Straw
40oz Flo Tumbler Lid Mermaid Straw
40oz Flo Tumbler Lid Mermaid Straw
40oz Flo Tumbler Lid Mermaid Straw
40oz Flo Tumbler Lid Mermaid Straw
40oz Flo Tumbler Lid Mermaid Straw
40oz Flo Tumbler Lid Mermaid Straw
40oz Flo Tumbler Lid Mermaid Straw
40oz Flo Tumbler Lid Mermaid Straw
40oz Flo Tumbler Lid Mermaid Straw
40oz Flo Tumbler Lid Mermaid Straw
40oz Flo Tumbler Lid Mermaid Straw

40oz Flo Tumbler Lid

$5.40
Regular price $6.00
Sale price $6.00 Regular price $6.00
Unit price
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Black Friday · duo

Get more & save up to 20% 

Please allow for increased fulfillment times due to popularity.

  • Leakproof screw-on lid with a flip-up covered straw
  • Cold for 24+ hours, hot for up to 12
  • Tapered base fits most standard cupholders
  • Right or left handed, BPA-free, every lid part comes apart to clean
Size: 40 oz Flo Tumbler
Black Friday: get more & save: Mix any sizes 
-10%
$40.50 $45.00
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-15%
$38.25 $45.00
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-20%
$36.00 $45.00
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Select 1 tumbler to complete your bundle

-10% $5.40
-15% FREE Ship
-20% $4.80
Choose your designs: 0 Picked
40oz Flo Tumbler - Celestial

40oz Flo Tumbler - Celestial
$45.00
40oz Flo Tumbler - Daydream Daisies

40oz Flo Tumbler - Daydream Daisies
$45.00
A tall handled tumbler with a light blue and white gingham check pattern, featuring a white lid with a flip-up straw and a small silver logo near the bottom.

40oz Flo Tumbler - Checkered Sky Picnic
$45.00
40oz Flo Tumbler - Black

40oz Flo Tumbler - Black
$45.00
40oz Mode Tumbler in Blue Prism: cream tumbler with a blue diamond print and peach side handle

40oz Mode Tumbler - Blue Prism
$45.00
40oz Mode Tumbler in Vanilla Silk: solid cream tumbler with peach side handle

40oz Mode Tumbler - Vanilla Silk
$45.00
40oz Mode Tumbler in Papaya Glow: solid orange-red tumbler with peach side handle

40oz Mode Tumbler - Papaya Glow
$45.00
40oz Mode Tumbler in Sunny Lagoon: solid aqua tumbler with yellow side handle

40oz Mode Tumbler - Sunny Lagoon
$45.00
40oz Flo Tumbler in Candy Stripes: pastel rainbow striped tumbler with a light blue lid and handle

40oz Flo Tumbler - Candy Stripes
$45.00
40oz Flo Tumbler in Cream Sky: cream tumbler with a teal lid and handle

40oz Flo Tumbler - Cream Sky
$45.00
40oz Flo Tumbler in Yellow Ladybugs: butter yellow tumbler with a ladybug print, sage lid and handle

40oz Flo Tumbler - Yellow Ladybugs
$45.00
40oz Flo Tumbler in Velvet Rose: tumbler with sweeping rose, coral and burgundy waves, mauve lid and handle

40oz Flo Tumbler - Velvet Rose
$45.00
40oz Flo Tumbler in Starry Woods: navy tumbler with a leaping rabbit, botanicals and moons, cream lid and handle

40oz Flo Tumbler - Starry Woods
$45.00
40oz Flo Tumbler in Sweet Cherry: pink tumbler with a red cherry print and hot pink handle, straw lid open

40oz Flo Tumbler - Sweet Cherry
$45.00
40oz Flo Tumbler in Chocolate Raindrop: blush pink tumbler with a chocolate brown raindrop pattern, pink lid and handle

40oz Flo Tumbler - Chocolate Raindrop
$45.00
40oz Flo Tumbler in Wavy Day: cream tumbler with soft yellow and green wavy lines, sage lid and handle

40oz Flo Tumbler - Wavy Day
$45.00
40oz Flo Tumbler in Party Bow: peach tumbler with a confetti, bow and sparkle print, lilac lid and handle

40oz Flo Tumbler - Party Bow
$45.00
40oz Venture Bottle - Black

40oz Venture Bottle - Black
$40.00
40oz Venture Bottle - Denim

40oz Venture Bottle - Denim
$40.00
40oz Venture Bottle - Blush

40oz Venture Bottle - Blush
$40.00
40oz Flo Tumbler - White

40oz Flo Tumbler - White
$45.00
40oz Flo Tumbler - Taupe

40oz Flo Tumbler - Taupe
$45.00
40oz Flo Tumbler - Slate

40oz Flo Tumbler - Slate
$45.00
40oz Flo Tumbler - Frosted Camo

40oz Flo Tumbler - Frosted Camo
$45.00
40oz Flo Tumbler - Pink Safari

40oz Flo Tumbler - Pink Safari
$45.00
40oz Flo Tumbler - Twilight Garden

40oz Flo Tumbler - Twilight Garden
$45.00
40oz Flo Tumbler - Leopard

40oz Flo Tumbler - Leopard
$45.00
40oz Flo Tumbler - RainBows

40oz Flo Tumbler - RainBows
$45.00
40oz Flo Tumbler - Sweet Bloom

40oz Flo Tumbler - Sweet Bloom
$45.00
40oz Flo Tumbler - Mermaid Tides

40oz Flo Tumbler - Mermaid Tides
$45.00
40oz Flo Tumbler - Blossomed Rows

40oz Flo Tumbler - Blossomed Rows
$45.00
40oz Flo Tumbler - Blush Camo

40oz Flo Tumbler - Blush Camo
$45.00
Stainless Steel Tumbler Straw Pack Mermaid Straw

Stainless Steel Tumbler Straw Pack
$14.00
Four colorful straws on a white background

Smoothie Glass Straw Packs - Cotton Candy
$10.00
Set of six colorful glass straws on a white background

Tumbler Glass Straw Packs - Cotton Candy
$12.00
Multicolored telescopic pole with black brush and black holder on a white background

Telescopic Straw - Black
$10.00
Five blue metal rods with 'Wincraft' branding on a white background

Stainless Steel Smoothie Straw Packs - Ocean Blue
$10.00
Set of colorful glass straws on a white background

Tumbler Glass Straw Packs - Melon Pop
$10.00
Set of five black pencils on a white background

Stainless Steel Smoothie Straw Packs - Siren
$10.00
Five metallic straws with a rainbow gradient on a white background

Stainless Steel Smoothie Straw Packs - Mermaid
$10.00
Set of black and clear glass straws on a white background

Tumbler Glass Straw Packs - Monochrome
$12.00
Four cylindrical objects in black, rainbow, silver, and white on a white background

Smoothie Glass Straw Packs - Moonstone
$10.00
Four colorful glass straws on a white background

Smoothie Glass Straw Packs - Mermaidy
$10.00
Set of colorful metal straws on a white background

Tumbler Glass Straw Packs - Sunny Day
$10.00
Set of colorful glass straws on a white background

Tumbler Glass Straw Packs - Daydream
$12.00
Four colorful straws on a white background

Smoothie Glass Straw Packs - Seaglass
$10.00
Set of colorful glass straws on a white background

Tumbler Glass Straw Packs - Seaglass
$12.00
Set of metal straws in various colors on a white background

Tumbler Glass Straw Packs - Midnight Prism
$10.00
Four colorful straws on a white background

Smoothie Glass Straw Packs - Blush Breeze
$10.00
Set of six pastel-colored glass straws on a white background

Tumbler Glass Straw Packs - Pink & Purple
$12.00
Set of five metal straws in green, gold, and black on a white background

Tumbler Glass Straw Packs - Midnight Matcha
$10.00
Four cylindrical pens in black, orange, and green on a white background

Smoothie Glass Straw Packs - Halloween
$12.00
Set of six metallic straws in black, gold, and bronze on a white background

Tumbler Glass Straw Packs - Fireside
$12.00
Four colorful straws in blue, green, silver, and white on a white background

Smoothie Glass Straw Packs - Snowy Day
$10.00
Four straws of different colors on a white background

Smoothie Glass Straw Packs - Midnight Prism
$12.00
Four colorful straws in green, gold, yellow, and black on a white background

Smoothie Glass Straw Packs - Midnight Matcha
$12.00
Four colorful straws on a white background

Smoothie Glass Straw Packs - Cool Tone
$10.00
Multicolored telescopic cleaning stick with pink holder on a white background

Telescopic Straw - Pink
$10.00
Telescopic Straw - Purple Mermaid Straw

Telescopic Straw - Purple
$10.00
Bento Flex Mermaid Straw

Bento Flex
$25.00
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Loved by thousands of Mermaid owners

Free US shipping over $55
30-day returns
Lifetime warranty
40oz Flo Tumbler Lid Mermaid Straw

40oz Flo Tumbler Lid

Why choose Mermaid?

Most 40 oz tumblers leak. Flo doesn't. 

Most 40oz tumblers use a press-on lid with an open straw hole. That's why they leak the second they tip in a tote bag or a car door. We built Flo with a screw-on lid, a magnetic seal and a silicone gasket around the straw, so 40 ounces stays where you put it.

Shop the Flo
Loved by thousands

 Real bags. Real cupholders. 

40oz Flo Tumbler - Blossomed Rows

40oz Flo Tumbler - Blossomed Rows

$45.00
40oz Flo Tumbler - Leopard

40oz Flo Tumbler - Leopard

$45.00
40oz Flo Tumbler - Daydream Daisies

40oz Flo Tumbler - Daydream Daisies

$45.00
40oz Flo Tumbler - Black

40oz Flo Tumbler - Black

$45.00
40oz Flo Tumbler - Leopard

40oz Flo Tumbler - Leopard

$45.00
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 Not just a tumbler. The last one you'll buy. 

Sealed shut, not just covered

Screw-on lid, magnetic seal, silicone gasket, flip-up straw cover. Throw it in your bag sideways and forget about it.

24 hours cold. 12 hours hot

Double-wall vacuum insulation. Ice you pour at 7 am is still ice tomorrow morning, and the outside never sweats.

Fits your hand. Fits your cupholder

Tapered base drops into any standard cupholder. Ergonomic handle that works right or left handed.

 Frequently Asked Question 

can't find it? Contact-us.

 Is the Flo Tumbler really leakproof? 

Yes! The Flo Tumbler lids and built in straws are leakproof. Throw them in any bag with the lid on tight and rest assured your tumbler will not leak.

 Can I mix sizes and designs? 

Yes! Pick one, two, or even 5 of your favorite designs and save big this holiday season.

What if I need to return it?

All of our products are backed by our money back guarantee. If you have an issue, or don't like the design, simply reach out to us and we'll make it right.