Travel Tips
How to Pack Light for International Travel: The Complete Carry-On Checklist
· 8 min read
Checked luggage is not neutral. It costs money (checked bag fees add up to $100–$400 per trip), it wastes time (30 minutes at baggage claim, every flight), it limits your flexibility (you can't take the regional budget flight that doesn't allow checked bags), and it creates anxiety (is my bag on this plane?).
One bag travel is not minimalism for its own sake. It's freedom.
Here's the complete system.
The Bag
Your carry-on allowance depends on the airline. The standard for full-service carriers is 22" x 14" x 9". Budget airlines (Ryanair, Wizz Air, AirAsia) often limit carry-on bags to 55 x 40 x 20 cm and a strict weight limit (7–10kg) — check before you buy.
Recommended bags:
- Osprey Farpoint 40L — the most popular travel backpack for a reason. Converts to a suitcase-style carry, has a lockable main compartment, and the hipbelt stows away. ~$200
- Peak Design Travel Backpack 45L — premium, compressible to 35L, exceptional organization. ~$350
- Cabin Zero Classic 36L — ultralight, minimal, inexpensive (~$60). Doesn't have the organization of the others but passes every carry-on size check
The Clothing System
The goal: 7 days of outfits from ~10 items that all mix and match.
The capsule wardrobe for 2 weeks:
- 3 T-shirts or tops (2 neutral, 1 pattern — all mix with bottoms)
- 2 bottoms (1 pants or jeans, 1 shorts or dress/skirt)
- 1 lightweight layer (merino wool sweater or packable down jacket for cold nights or AC)
- 1 versatile outer layer (a packable rain jacket serves for both rain and cold)
- 5 pairs of underwear
- 3 pairs of socks
- 1 pair of shoes for walking (wear on the plane)
- 1 pair of flip flops or sandals (pack)
The fabric rule: Merino wool is the single best travel fabric. It regulates temperature, resists odor for 3–5 days of wear, and dries overnight. Icebreaker, Smartwool, and Uniqlo merino are good starting points.
What not to bring:
- Jeans (heavy, slow to dry, inflexible)
- Multiple "nice" outfits for hypothetical fancy dinners
- More than 2 pairs of shoes — they're the heaviest items you pack
- A full-size towel (hostels provide them; a small microfiber towel weighs 150g and dries in 30 minutes)
The Tech
Pack only what you'll actually use daily:
- Phone + charger
- Universal power adapter (one small one covers all plug types)
- Portable battery (20,000mAh handles 3–4 full phone charges)
- Noise-canceling earbuds (AirPods Pro or Sony WF series)
- Kindle or tablet (optional — your phone works)
- Laptop only if you'll genuinely need it (most 2-week trips don't require one)
Skip: Camera (unless photography is the trip's purpose), multiple chargers/cables you won't use.
The Toiletries
The 3-1-1 liquid rule for carry-on: containers of 100ml or less, all fitting in a 1-quart clear bag. In practice, this means:
- Switch to a solid shampoo bar (no liquid restriction, lasts 3x longer than a bottle)
- Buy full-size toiletries at your destination on arrival day — the pharmacy run takes 20 minutes and costs $10–$20
What to bring in your personal item pouch:
- Small toothpaste + toothbrush
- Deodorant (solid or roll-on, 100ml)
- Any prescription medications with their original packaging
- Sunscreen if your destination doesn't have your preferred SPF
Documents and Money
All documents go in both physical and cloud form:
- Passport (physical)
- Travel insurance card (physical + screenshot)
- Booking confirmations (screenshots in Uro, offline)
- Cash in local currency for arrival ($50–$100 equivalent)
- Credit card with no foreign transaction fees (Charles Schwab debit is ideal for ATM withdrawals anywhere)
How Uro's Packing AI Helps
Uro generates a personalized packing list for your specific trip — not a generic list, but one that accounts for:
- Your destination's climate and weather forecast
- Specific activities (temple visits, hiking, beach)
- Trip duration
- Cultural dress requirements (you'll need a sarong for Bali's temples, a headscarf for Morocco)
Tell Uro: "Generate a carry-on packing list for 2 weeks in Southeast Asia including Bali, Thailand, and Vietnam. I'm doing beach, temples, and some hiking."
It returns a clean, itemized list you can check off as you pack. No more "did I forget anything" anxiety.
Download Uro free on iOS and Android.
Frequently Asked Questions
Can you really travel internationally with just a carry-on?
Yes. Most experienced travelers do it for trips up to 3–4 weeks. The key is a capsule wardrobe (5–7 pieces that mix and match), merino wool clothing that resists odor and dries quickly, and being willing to do laundry every 5–7 days at a laundromat or in a sink.
What size backpack fits in airplane carry-on?
Most airlines allow a carry-on bag up to 22" x 14" x 9" (56 x 36 x 23 cm) and a personal item (40 x 30 x 15 cm). The Osprey Farpoint 40L, Peak Design Travel Backpack 45L, and Away Bigger Carry-On are popular choices that consistently pass carry-on sizing. Low-cost carriers have stricter limits — check before flying.
How do you do laundry when traveling with one bag?
Laundromats exist in every city in the world — a full wash takes 1–2 hours and costs $3–$8. Most hostels and guesthouses offer laundry service. For emergencies, sink-wash with a small amount of shampoo or Dr. Bronner's soap, wring thoroughly, and hang overnight — merino wool and synthetic fabrics dry in 4–6 hours.
What toiletries should I pack for international travel?
Buy full-size toiletries at your destination (cheaper and eliminates liquid carry-on issues). Bring travel-size essentials only for arrival: toothbrush and paste, deodorant, any prescription items, and sunscreen if visiting a beach or tropical destination. A solid shampoo bar eliminates the liquid restriction entirely.
