40 oz Travel Tumbler Size:One Size the re-enforced ferrules are fitted

the re-enforced ferrules are fitted to 1/10

The 3000 and 4000 SHIELD models contain 11 strategically located internal seals for years of reliable use with minimal maintenance

breathable FlashDry-XD technology wicks moisture and speeds drying

Extend warranty to 2 years with registration (automatic 1-year warranty included)

Operates on 9 AA batteries

40 oz Travel Tumbler Size:One Size the re-enforced ferrules are fittedHydration Handled. The new Travel Tumbler is here to hydrate more and refill less. A very comfortable, extremely durable handle takes it to the next level, and the large size can go anywhere, even fitting most cupholders. TempShield double wall insulation ensures cold stays cold, and the flexible straw is easy to sip any which way. ____________________________________ Features TempShield double wall vacuum insulation protects temperature for hours