The Tracker is the same insulated 3 in 1 body with a ring around the middle that turns and stops on a number. It was built for lawn games where nobody wants to keep walking back to a scoreboard: cornhole, ladder toss, bocce, horseshoes and lawn darts. The score lives on the cup in your hand and it is still there after you set the drink down and pick it back up.
A ring of numbers on a drink turns out to be just as useful for counting the drinks themselves. Plenty of owners never play a single round of anything and just click the ring over each time they refill, which is a much more honest tally at the end of an afternoon than memory is.
Nothing about the insulation changes. Dual wall vacuum, sweat proof outside, 304 stainless, the same cap swap system for cans, slim cans and bottles, dishwasher safe. Five colors, all chosen so the numbers on the ring stay readable against the body.