We got this picnic blanket in 2016 and use it every time we go to the beach. It folds out to 60" x 78", and folds up to a 12.5" x 10.6" rectangle complete with handle. The bottom is made of some kind of tough waterproof material and the top is easy to wipe clean. It's padded, and the top surface feels nice and has a pretty leaf pattern.
It was $27 when we got it but if you use coupon code BQ9PEOCY you can get it for $16.
