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Free Shipping Orders $49+ (U.S. Only)

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.

12oz Food Jar

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
20oz Food Jar

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

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
24oz Bottle With Spout Lid + Straw Lid (2 Pack)

Black/Malechite

White/Coral

24oz Bottle With Spout Lid + Straw Lid (2 Pack)

Regular price $35.99

Regular price Sale price $35.99
Unit price per
40oz Bottle With Four Lid Combo (2 Pack)

Ice Grey/Pine

Superior Blue/Mauve

40oz Bottle With Four Lid Combo (2 Pack)

Regular price $42.99

Regular price Sale price $42.99
Unit price per