With options for customization, these soft coolers are easily portable and a great size for personal use. The air-valves allow for quick inflation, and the flexible material allows for easy storage and travel. Perfect for travel, it can easily carry up to nine liters and keep all nine of them cold. Don’t they make you want to get outside and walk around a mountain? No? Not your thing? Totally get it. Don’t they make you want to store up to 9 liters of your favorite drinks and do the activity of your choice? (Was that better?)