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Buy One, Get Customization Free On A Second Item!* Ends 9/2

*Offer valid from 8/29/25 through 9/2/25 at 11:59 PM PT. Buy one item with customization and receive free customization on a second item of equal or lesser value. Discount applies to customization charges only; product prices are not discounted. Limit 10 customized items per order. Only one side of customization is eligible for the discount per item. If both sides are customized, only one side will be discounted. Discount automatically applied at checkout. Offer valid only on purchases made at MyThermoFlask.com. Cannot be combined with other offers or discounts. No adjustments on previous purchases. Terms subject to change without notice.

Collection: The Yellow Collection

7 Products

Neon Water Bottle With Spout Lid

Unmellow Yellow

Vivid Blue

Sunkissed Coral

Screamin' Green

Shocking Pink

Unmellow Yellow

Shadow Glow

24oz Neon Water Bottle With Spout Lid

Regular price $26.99

Regular price Sale price $26.99
Unit price per
12oz Food Jar 2 Pack

Sold out

Mountain Spring + Ocean/Ocean + Sunrise

Mountain Spring + Ocean/Ocean + Sunrise

Mint + Sherbet/Tangerine + Mint

12oz Food Jar 2 Pack

Regular price $39.99

Regular price Sale price $39.99
Unit price per

Sold out
20oz Food Jar

Candy Oasis

Candy Oasis

Blush Sandstone

Ocean Mist

Desert Bloom

Spring Blossom

Tropical Sunset

Garden Party

20oz Food Jar

Regular price $29.99

Regular price Sale price $29.99
Unit price per
14oz 2-in-1 Snack and Sip Tritan™ Bottle

Sweets

Cars

Sharks

Sweets

Unicorns

14oz 2-in-1 Snack and Sip Tritan™ Bottle

Regular price $14.99

Regular price Sale price $14.99
Unit price per
25oz Neon Traveler Bottle

Unmellow Yellow

Sunkissed Coral

Vivid Blue

Screamin' Green

Shocking Pink

Unmellow Yellow

25oz Neon Traveler Bottle

Regular price $29.99

Regular price Sale price $29.99
Unit price per
20oz Food Jar 2 Pack

Mountain Spring + Ocean/Ocean + Sunrise

Mint + Sherbet/Tangerine + Mint

Strawberry + Blush/Lime + Moss

Mountain Spring + Ocean/Ocean + Sunrise

20oz Food Jar 2 Pack

Regular price $49.99

Regular price Sale price $49.99
Unit price per
12oz Food Jar

Candy Oasis

Blush Sandstone

Ocean Mist

Desert Bloom

Spring Blossom

Tropical Sunset

Garden Party

Candy Oasis

12oz Food Jar

Regular price $24.99

Regular price Sale price $24.99
Unit price per