I plan to bring a leak-proof thermos with coffee for the second bottle pocket on my next adventure. Best backpack: Tortuga Travel Backpack Pro 40L My rolling carry-on suitcase holds about 40 liters.
I eventually switched to a backpack — which distributes that weight more evenly across my body — and never looked back. Since then, I've been on a quest to find the best backpacks for work. There's no ...