Fellowes Active Fusion Anti-Fatigue Mat, Black $72.99
– “Unique shape promote stretching and movement throughout the day, encourages subtle movement to prevent fatigue, beveled edges help avoid trip hazards”
Regular price on this varies across the map, but this price was the lowest i could find at the moment. Amazon says regular price is $108. Costco has it for $119.99.
Few available reviews generally are quite positive.
Seems to come in and out of stock.