The Grotto 20 cooler back from Sierra Designs holds up to 28 cans without ice and is durable enough for adventure with 840D and 600D TPU-coated material. The watertight soft cooler with roll-top closure and wide-open bring provides easy access while keeping water out. The attached feet improve stability and increases the longevity of your cooler. Switch it up with backpack-style or duffle-style carry straps for easy transport. Comes with a detachable can opener.