Best Travel Toiletry Bottles Compared on Maker Specs (2026)
Three refillable travel containers for the liquids bag, compared on the numbers each maker publishes. We have not tested them ourselves.
We may earn a commission when you buy through links on this page, at no extra cost to you. This does not change which products we cover. How we make money.
For carry-on liquids, every container has to be 3.4 oz (100 ml) or less and fit in a single quart-size bag. The three picks here take different approaches. The humangear GoToob+ is a full 3.4 oz squeeze tube, the Matador FlatPak is a flat, very light bottle, and Cadence Capsules are small magnetic containers for creams and small amounts.
Quick picks
- Best for shampooGoToob+ Large 3.4 ozCheck price
- LightestFlatPak Toiletry BottleCheck price
- Best for small amountsFlex Capsules (Small / Medium / Large)Check price
Side-by-side specs
| Spec | Top pickhumangearGoToob+ Large 3.4 oz | LightestMatadorFlatPak Toiletry Bottle | Small amountsCadenceFlex Capsules (Small / Medium / Large) |
|---|---|---|---|
| Best for | Shampoo and conditioner | Saving space in the liquids bag | Creams, pills and small amounts |
| Capacity | 3.4 fl oz (100 ml) | 3 oz (90 ml) | S 0.56 / M 1.32 / L 2.75 fl oz |
| Size | 2.25 x 4.5 x 1.5 in | 4.3 x 3.1 x 0.9 in | S 1.05x1.8x2 in; L 3.7x1.8x2 in |
| Weight | 2.29 oz (65 g) empty | 0.41 oz (11.5 g) empty | Not listed |
| Closure | LoopLock locking cap, no-drip valve | Screw cap | Leakproof lid; magnets link capsules |
| Price | Check price | Check price | Check price |
Specs from each manufacturer's US product page. Bars compare each spec against the best value in this table; they are not test scores. Prices change often, so we link out instead of quoting them.
The picks
★Best for shampoo
humangearGoToob+ Large 3.4 oz
Best for: Shampoo and conditioner
A 3.4 fl oz (100 ml) squeeze tube in food-safe, BPA-free silicone with a locking cap and no-drip valve.
What we like
- Full 3.4 oz
- Wide opening for filling
- Stands on its cap
Watch out for
- Heaviest bottle here
The GoToob+ Large holds 3.4 fl oz (100 ml), the TSA maximum. The tube is food-safe, BPA-free silicone, and the cap and ID ring are PP plastic. It measures 2.25 x 4.5 x 1.5 in and weighs 2.29 oz (65 g) empty. A LoopLock cap and a no-drip valve guard against leaks, and the wide opening makes it easier to fill. It also stands on its cap.
★Lightest
MatadorFlatPak Toiletry Bottle
Best for: Saving space in the liquids bag
A flat 3 oz (90 ml) refillable bottle that weighs 0.41 oz empty.
What we like
- Lightest by far
- Flat shape packs well
Watch out for
- Slightly under 3.4 oz
Matador’s FlatPak holds 3 oz (90 ml), a little under the limit. At 0.41 oz (11.5 g) empty and 4.3 x 3.1 x 0.9 in, it is the lightest and flattest bottle here, which helps when the quart bag is full.
★Best for small amounts
CadenceFlex Capsules (Small / Medium / Large)
Best for: Creams, pills and small amounts
Leakproof, BPA-free hexagonal capsules that snap together with magnets: Small 0.56, Medium 1.32 and Large 2.75 fl oz.
What we like
- Three sizes
- Magnets keep them together
Watch out for
- Small volumes
- Weight not listed
Cadence Capsules are hexagonal, leakproof, BPA-free containers in three sizes: Small 0.56 fl oz, Medium 1.32 fl oz and Large 2.75 fl oz. Magnets link the capsules together. Cadence also sells an Extender that adds 1.43 fl oz while keeping within TSA dimensions. Cadence does not list weights.
How to choose
- Stay at or under 3.4 oz. That limit applies to each container. See the TSA liquids rule.
- Fit the bag. Flat or small containers leave room for more items in one quart bag.
- Know the exceptions. Formula and breast milk follow different rules. See flying with baby formula and breast milk.
- Medications. See TSA screening with medical conditions.
Frequently asked questions
How big can a carry-on liquids container be?
TSA allows containers of 3.4 oz (100 ml) or less, all in one quart-size bag. See our TSA liquids rule guide.
Is the GoToob+ Large within the limit?
Yes. humangear lists it at 3.4 fl oz (100 ml).
Which bottle is lightest?
The Matador FlatPak at 0.41 oz (11.5 g) empty.
Can I put pills in Cadence Capsules?
Cadence sells them for creams, liquids and small items. If you carry medication, read our guide to screening with medical conditions.
