The portability of a backpack. The ice-keeping performance of a hard cooler. These coolers are phenomenal! Very rugged and sturdy, great for any outdoor activity and/or lounging! Ricky O'Connell, Atlanta, GA This is the highly versatile, leak-proof soft cooler that started it all. With fabric that is 2x thicker and reinforced seams, this is an everyday cooler designed to be as tough and high-performance as technical outdoor gear that can cost much more. Dimensions & Capacity ?12" diameter x 16" tall when closed ?18 Cans Plus Ice OR ?5 Wine Bottles plus ice Features ?TriFold DriTopTM System. Foolproof seal to keep ice in and air out. ?MuleSkinEVTM. Tough Inner and Outer layers; 2X thicker than most soft coolers. ?PolarLayerTM Insulation. Keeps contents IceMule Cold for up to 24 hours. ?IM AirValveTM. Allows for insulation layer air removal so the coller can roll up for storage in its stuff sack.