The toiletry bag is where most travelers lose the carry-on battle. It starts as a small pouch and somehow ends up half the bag. Here's how to keep it contained.
The Liquids Rule (For Carry-On)
The 3-1-1 rule: containers must be 100ml or less, all containers fit in one quart-sized clear bag, one bag per passenger. This is the hard constraint that determines your toiletry packing strategy.
Most people try to fit their regular toiletry routine into 3-1-1 compliance. The better approach: rethink the routine for travel.
What to Bring
Non-negotiables
Toothbrush and toothpaste — travel-size or decanted into a small tube. Electric toothbrush heads travel well; the base can be heavy.
Deodorant — stick deodorant isn't a liquid and doesn't count toward your 3-1-1 allowance. Roll-on or spray does.
Prescription medications — bring more than you need. Losing your supply of a prescription medication in a remote location is a significant problem. Medications travel best in original labeled containers, especially through customs.
Face wash and moisturiser — decant into small bottles. This is the area most people over-pack. Three nights doesn't require 200ml of face wash.
Razor — safety razors are not allowed on carry-on (removable blades); cartridge razors are. Disposable razors work fine for most trips.
Situational
Sunscreen — if your destination doesn't reliably stock the SPF and formula you prefer. For most major destinations, buying locally is easier than transporting.
Insect repellent — easier to buy locally at most tropical destinations. If you need specific formulations (high-DEET for malaria zones), bring from home.
Contact lens solution — available worldwide but the formula and packaging vary. If you have a specific preference, bring from home.
Feminine hygiene products — widely available in most cities, harder to find in rural areas. Bring enough for your trip if you're traveling off the beaten path.
The Case for Solid Products
Solid toiletries have eliminated the liquid math problem for many travelers.
Shampoo bars — Lush and Ethique both make effective shampoo bars that last months of travel. No container, no liquid restrictions, no spills.
Conditioner bars — less universal than shampoo bars (some formulations don't work well on all hair types) but worth trying.
Solid sunscreen sticks — work well for face application; less practical for full-body coverage.
Solid perfume — no spillage risk; long-lasting.
Toothpaste tabs — small compressed tabs that work like regular toothpaste. A tube of 60 tabs weighs almost nothing.
Going full solid eliminating the 3-1-1 bag entirely is achievable for many travelers.
The Toiletry Bag Itself
The bag should have:
- Clear exterior or clear interior sections so you can see contents at a glance
- Waterproof lining (leaks happen)
- A hanging hook for use in hotel bathrooms where counter space is limited
- Size appropriate to 3-1-1 compliance
Recommended: Lewis N. Clark Wallaby Hanging Toiletry Bag (mid-range, widely available); Muji Zipper Case (minimalist, clear sides, excellent quality-to-cost).
What Hotels Provide
Most hotels of three stars and above provide:
- Shampoo and conditioner
- Body wash or soap
- Lotion
- Hair dryer
Check your specific accommodation before packing these items. For short trips, the hotel-provided toiletries are often sufficient.
What to Buy There
Unless you have very specific skincare needs or prescription requirements, most toiletries are available everywhere and often at lower prices than home.
Great destinations for toiletry shopping:
- Japan — extraordinary pharmacy culture, incredible product selection, often lower prices
- Thailand — well-stocked pharmacies in every city
- France — pharmacies stock excellent skincare brands not available elsewhere
- UK Boots — comprehensive and reasonably priced
The Checklist
A complete travel toiletry kit for carry-on:
- Toothbrush and travel toothpaste
- Deodorant (stick)
- Face wash (small bottle)
- Moisturiser with SPF (small bottle)
- Razor (cartridge)
- Shampoo and conditioner (small bottles or bars)
- Lip balm
- Prescription medications
- Any condition-specific items
That's it. If you're packing more, question whether each item earns its space.
The Mental Model
A toiletry bag should fit in your hand. If it takes two hands to carry, it's too large. The discipline here isn't about suffering through a trip without your skincare routine — it's about decanting, going solid where possible, and buying at the destination what isn't worth transporting.
Most people discover their actual daily toiletry needs are 60% of what they packed the first time.
