Should I bring a waterproof backpack cover?

Yes, but use it sparingly. It traps heat and moisture against your back. It is better to use an internal dry bag for your electronics and clothing, and only use the cover when it is actively pouring rain.

How often should I do laundry?

In Southeast Asia's humidity, you should wash your clothes every 3 to 4 days. Local 'by the kilo' laundry services are found on almost every street corner and usually return your clothes clean and folded within 24 hours.

Choosing the right gear for backpacking Southeast Asia's humidity

Stick to lightweight, moisture-wicking synthetic fabrics and avoid cotton at all costs to prevent overheating and mold. Prioritize a versatile rain shell and a 40-liter pack to keep your gear portable and breathable while moving between humid transit hubs.

Select your clothing materials. Bring only merino wool or high-quality synthetic 'wicking' shirts. Cotton traps sweat against your skin, stays wet for hours, and promotes bacterial growth. Aim for three shirts that you can sink-wash and dry overnight.
Choose the right backpack. Use a 40L pack with a mesh suspension system. You need space between your back and the bag for airflow, or you will arrive at every destination with a soaked back.
Manage your electronics. Humidity kills gear. Buy a pack of silica gel packets and keep them in your tech bag. Keep your phone and camera in a dry bag during boat trips or monsoon downpours.
Prepare for sudden rain. Don't bring a heavy rubber raincoat. Buy a breathable, lightweight rain shell or a high-quality poncho that covers both you and your backpack. If it's not breathable, you'll get just as wet from your own sweat as you would from the rain.

Should I bring a waterproof backpack cover?: Yes, but use it sparingly. It traps heat and moisture against your back. It is better to use an internal dry bag for your electronics and clothing, and only use the cover when it is actively pouring rain.
How often should I do laundry?: In Southeast Asia's humidity, you should wash your clothes every 3 to 4 days. Local 'by the kilo' laundry services are found on almost every street corner and usually return your clothes clean and folded within 24 hours.