The classic backpack styling of the new Party Pack disguises the ultimate party to go. You'll be partying like a pro with everything you need including a large capacity insulated cooler with zippered mesh pockets for ice packs. The roomy upper pack holds all your party essentials with two external koozies, a separate fleece-lined pocket for your shades and external straps to hold a blanket. You'll appreciate the on-the-go shoulder strap koozie as well as the stealth bottle opener. Party on! Adventures are messy. If your bag gets dirty, Dakine recommend hand washing with mild soap (like Nikwax Tech Wash), cold water and a soft bristle brush. If hand washing is not going to do the trick, use a front loader washing machine. To ensure your backpack doesn't get tangled, place inside a pillowcase or mesh bag before washing. Always use cold water, mild soap and run on a gentle cycle. Never bleach your pack. Hang to dry in a warm but shady place, ensuring both inside and out are dry before storing. Details: 600D polyester, 300D polyester, insulated cooler with interior zippered mesh pocket, fleece lined sunglass pocket, adjustable sternum strap, stealth bottle opener, three built-in insulated doozies, breathable shoulder straps, limited lifetime warranty. Dimensions: 1710 cubic inches (28 liters), 19'' x 13'' x 8.5'' (48 x 33 x 22cm). Material: Polyester.