Expedition Canvas 36 Can CoolerThe original AO Canvas Series 36 Pack cooler has been an industry leader for over 30 years! Our canvas cooler has been a staple for our brand with good reason. The durable exterior is made from 600 denier polyester canvas, with a heavy duty backing for exterior strength, and a Scotchguard topcoat for UV protection. Insulated with thick polyurethane high density closed cell foam, which makes it hard for air to be blown through. Lined with a leak proof,