For our honeymoon I brought the Kelvin Cooler backpack cooler with us. We only wanted one carryon and one checked suitcase for each of us when we traveled. The Kelvin Cooler was ideal. I loaded it with Jennifer’s curling iron, our jackets, my laptop, charging cables, battery charger, sunscreen, snacks, selfie stick, first aid kit, my neck pillow, and my running shoes. This backpack cooler only weighs 1.5 lbs when empty, but it can hold up to 26 liters so it can easily satisfy your needs on any adventure.