Toiletry bags are the most frequently replaced item in a travel kit, usually because a bottle leaked through an unlined seam. Buying for leak resistance and hanging practicality beats buying for looks.
Design with the airport in mind
Security treats liquids separately: containers of 100 ml or less, all inside one clear resealable bag of about a litre. The container size is what counts, not how much is left in it.
Two practical approaches:
- Clear TPU pouch as your actual wash bag, so security can see everything without unpacking.
- Solid hanging bag for hotel bathrooms, plus a separate clear bag that goes in the tray.
What to look for
- A hanging hook — hotel bathrooms rarely have shelf space.
- Waterproof or coated lining with sealed or taped seams. Nylon alone wicks.
- A flat, wide footprint so it stands on a narrow sink ledge.
- Elastic loops or dividers to stop bottles tipping and leaking.
- YKK-style zips and a wipe-clean exterior.
Filling it without leaks
Decant into 60–100 ml silicone bottles, leave a little air for pressure changes, and put anything oily in a second zip bag inside the main one. Solid shampoo, deodorant and toothpaste tablets remove three containers from your liquid allowance entirely.
Sizes
- Small (1 L) — for the liquid bag itself and weekend trips.
- Medium (2–3 L) — a full wash kit for one person, one to two weeks.
- Large (4 L+) — families, or anyone carrying a hairdryer and full-size bottles in a checked bag.
Packing it so nothing leaks
Three habits prevent almost every wash-bag disaster. Leave a little air in every bottle so pressure changes at altitude have somewhere to go. Put oils and sunscreen in a second zip bag inside the main pouch, because those are the two products that escape. Cap bottles upright and stand the bag the same way in your case, with the hook facing outward so it is the first thing you can grab.
Take one spare 100 ml bottle and one spare zip bag. Both weigh almost nothing and neither is easy to buy at an airport at 6 am.
Solid alternatives that cut liquid count
Shampoo bars, solid deodorant, toothpaste tablets and a shave bar remove four containers from your allowance. That is often enough to travel a week with liquids in a single 1 L bag — and nothing in the kit can leak onto your clothes.
How this page is built
Listings and dated prices come from our partner product feed. We are a price guide, not the seller: the live price, shipping and returns are on their page. See the 100 ml rule guide for how the rule is enforced at different airports.