Coleman's marine cooler offers the most size for the money - CNET
Coleman Xtreme 5-Day Hard Cooler - 70 qt. | REI Co-op
316 Series™ 70-Quart Hard Cooler | Coleman
Picnicking with Coleman: The Coleman 70 Qt. Xtreme Cooler Will Keep Your Ice Frozen for 5 Days & Keep Your Drinks Cool & Food Fresh! - Whispered Inspirations