Sumerk Universal Waterproof PVC phone case.

Cute and practical!  This larger bag is great for taking my Kindel to the beach.  It's much more waterproof and sand proof that just slipping it into a zip lock bag.  It's large enough to hold my ipad mini or kindel plus my phone and hotel keys and money.  It's really cute too.  I got the one with the fish on the front.  It has (4) latches on the top to keep out the sand and water.  You can use your device through the bag without having to take it out.  Great little product!