TomTop offers the Portable Double-Layer Beach Mat Camping Picnic Cushion in several colors Blue (pictured) for $10.58 with free shipping. That's $15 off list and the lowest price we could find. It measures approximately 79" x 79".

Note: This item ships from China and may take up to four weeks to arrive. The countdown timer on the product page does not reflect an actual expiration time and resets daily.