Finally, a mat that really is big, water resistant and easy to fold! Having been frustrated with most large picnic mats out there that need to be folded up in the exact same way, the picnic rugs are designed with an adjustable strap so that they don’t need to be folded in any specific way. Just fold or roll it up however you please and adjust the strap to suit. The water-resistant fabrication makes it the perfect partner for the beach or park and squishy foam lining makes it soft and comfortable to sit or lay on