Packing for a Three-Month Trip Through Latin America

Stick to a 40-liter backpack to ensure you can carry it onto buses and keep your gear manageable. Focus on lightweight, moisture-wicking layers that can handle both Andean mountain chill and tropical humidity.

  1. Select the right bag. Use a 40L to 45L travel-specific backpack that opens like a suitcase (clamshell style). Avoid top-loading hiking packs, as they make it impossible to reach gear at the bottom without dumping everything out.
  2. Use a modular packing system. Use compression packing cubes. Group items by type: one for tops, one for bottoms, one for undergarments. This prevents the 'backpack explosion' every time you check into a hostel.
  3. Apply the 'one-week' rule. Pack for exactly 7 days of clothing, regardless of your 3-month duration. You will do laundry at hostels or local lavanderías every week. Carrying more just adds weight that will ruin your back on cobblestone streets.
  4. Layering is non-negotiable. Latin America has massive temperature swings. Pack one lightweight down jacket and one rain shell. These can be layered over your t-shirts to handle anything from 40°F in Cusco to 90°F in coastal Mexico.
  5. Downsize your toiletries. Do not pack full-sized bottles. Bring 3oz silicone containers and refill them as you go. Most supplies are readily available at local pharmacies (Farmacias) in any major Latin American city.
Do I need a hard-shell suitcase for security?
No. Hard shells are cumbersome on buses and impossible to shove into overhead luggage compartments. Use a soft-sided, lockable backpack.
How do I keep my gear safe from theft?
Buy a Pacsafe-style wire mesh bag protector if you are worried, but the best defense is a small luggage padlock and always keeping your passport and electronics in a daypack that stays on your lap while traveling.