Comments: I really, really like this ball! I was very hesitant at first to move away from my Pro Penn Marathon Extra Duty balls, but now I'm considering it. I first discovered how great this ball was when I was hitting against the wall. Compared to even a fresh can of Pro Penn Balls, the Triniti ball is way better for hitting against the wall (in my opinion). This ball has better bounce and a really great feel coming off the racket. This just made for a much more rhythmic play against the wall. It bounced off the wall deeper than the Pro Penn which allowed me to stand back a lot further from the wall giving me more time to really focus my strokes during my drills (the wall I hit agains is made of cinderblock). On court, I also really enjoy the way this ball plays. It's a bit slower and a lot bouncier but it lasts 4x longer than my Pro Penn Balls. Compared to my regular balls, I notice after two sets that the Pro Penns (or Dunlap ATP Extra Duty) really flatten out. Not so with the Triniti balls! This ball plays great straight through three sets and then again the next day! The balls feel slightly heavier when being struck but gives a very rewarding thud on impact and my arm doesn't feel any difference at all. The way the Triniti ball plays on hard court reminds me of playing on har-tru (for some strokes - but not drop shots or slices). The Triniti ball feels great while serving too. Ahead of match play though, I have to switch back to my Pro Penn Balls as there definitely is a difference in play - it's slight but it's there. And I am able to adapt back to the old balls very quickly and easily it just takes a few strokes for me. If you regularly hit against a wall - upgrade to this ball, I'm confident you'll be very happy with it.If you are nervous about trying this ball for court-play -- I recommend just giving one can a try. You could end up really loving it, like me!
From: Charles Menlo Park, CA

Comments: The comments make me think you are talking about the Tretorn balls from the early 1960's. They wore for a long time, but lacked feel, and were a noticeably heavier ball.
From: Robert, 2/25/21

Comments: Overall, Trinity is the best ball I've played with. After ten hours of play over three weeks, my doubles group still preferred playing with these balls over a new can of regular balls. They maintain a consistent, predictable bounce and retain enough fuzz to bite your strings for good spin and topspin. I've hit with these balls on damp courts after a night of rain and they still had consistent lively bounce. Triniti's don't seem to wear out or lose their bounce. With their longevity and consistency they're more cost effective than even premium traditional balls. I think Triniti's will change the way tennis balls are made like carbon fiber changed tennis racquet technology.
From: Tom, 12/20/20

Comments: I absolutely hated my experience. Playing with these balls can be best described as playing with balls that feel dead, but can still bounce normally. The feeling was dead and hollow, making the playing experience very uncomfortable. The marketing of this ball seems to imply that it's comparable to a regular ball, a performance tennis ball, which didn't feel genuine at all. I also experienced some arm pain after playing for about 90 minutes. It doesn't make much sense to me to buy a poor performing ball with marked up packaging. There are better ways to create benefit for the environment. Luckily, my hitting partner got these as a gift, so I didn't have to pay for these.
From: Phil, 9/10/20

Comments: Wow, these are amazing! They simply don't wear out. Unlike other pressureless balls, they play like regular balls. I play singles daily, and am a 3.5 level player. I've tested a set of these balls, after ten days of playing against a new can, and they bounce just as high and higher than second day regular balls. They lose some fuzz, but don't seem to ever go bald. I lose them before I retire them. I bought a case and I'm not sure I will ever need to buy balls again.
From: Jeremy, 9/6/20

Comments: I love the balls! Played with them all summer on har-tru courts. The summer has been quite warm, so I do not know how they will be on hard courts, cooler weather or indoor tennis. How they have been used I think they are fabulous.
From: Lulu, 9/5/20

Comments: Do not buy this ball. I purchased three sleeves and have had a very inconsistent experience. One ball in a sleeve might feel normal, maybe two, but at least one barely bounces and feels very heavy, flat, and heavy. We just played less than ten points with a new sleeve, threw them in the trash, and continued to play three sets with one week old used Costco Wilson balls that played much better.
From: Joshua, 7/2/20

Comments: Great ball, did not feel much difference to traditional balls. I played with a fresh can of traditional balls and a can of Triniti to do a direct comparison. I am playing with 310 gram racquet and soft strings, intermediate and advance player.
From: Arek, 6/18/20

Comments: I received a can for X-mas, great idea, but the balls were not that great. They didn't bounce very well and seemed heavy and dead. Played a game or two and quickly opened another can of balls. I see that some say they are better for colder weather, but I live in Southern California, so these didn't work out for me.
From: Roger, 6/15/20

Comments: Incredible new innovation in tennis balls. They have a really cool bounce that does a few things well. On colder days they bounce as if it were summer. The rubber is harder and the bounce doesn't seem like it depends on air pressure. They stay super lively much longer than any traditional ball. I think the extra bounce and speed you can hit it helps you're accuracy and it's more fun hitting winners. Thank you.
From: Steve, 4/21/20

Comments: I didn't like this ball. It felt like a brick to me. If you have any problem with your arm I don't recommend this ball. The idea is good, but I find it impossible to play two sets without felling pain. It was not good for my arm.
From: Sergio, 1/21/20

Comments: We like to play in the winter even when the temperature is in the 30s. The problem with tennis balls at that temperature is they don't bounce well when cold. At 37 degrees, a new can of Penn balls seemed dead by the time we were done warming up, so I got these out and they bounced and felt great. That was after I had played four other matches with them over about two months. If you want to play in the cold, this is the ball. They also were fine when it was warm, but had just a slightly lighter feel to me, but will try again when it gets warm, with a new box.
From: Pete, 12/10/19

Comments: Very impressed. Holds up well and is quite soft. However, after two sessions it had a hollow feel and sound, although it bounced well. I am okay with this, but it takes convincing for some people because people can get used to heavy, inconsistent in quality Penn Balls because those balls are so cheap in price. Overall these balls are great for practice. The jury is out as a competition ball in my opinion.
From: JN, 11/24/19

Comments: As a pressure less ball, they feel and sound like a standard ball. To see if the durability claim was accurate I have used the same balls for 17 sets of tennis on clay. They still bounce great. The cover is holding up well.
From: Fred, 10/25/19

Comments: I have hit with this ball for about 10 hours now and I was part of one of Wilson's blind focus study tests even though we had no idea what the ball concept was. The ball plays really well. It is very stable and I think it will be more stable than regular balls in varying temperatures and altitude. It holds up well re-wear. It may be a bit heavier and I have found rallies go longer since the ball bounces so consistently. So I think this is a great practice ball and also in its life cycle very appropriate for ball machines. It is expensive though.
From: Jess, 10/17/19

Comments: I truly admire Wilson's innovation with this ball, from the eco-friendly packaging to the worldwide sustainability efforts. However, I would not buy this ball again until after it goes through another couple of improvement iterations. Straight from the hexagonal package, the feel of the felt and the ball pressure immediately gives a 'wow' factor having come out of a pressureless ball can. My friend and I hit with the Triniti along with 2 other brands, all fresh out of new cans. After about 30 minutes of several 12-ball rallies on average, the Triniti started to have a distinct hollow sound. Despite the newness of the felt and the firmness of the ball pressure, it felt like we needed to apply extra effort to the Triniti just to get the ball past the service line. Basically it felt like a new ball, but hit like a flat one. I'll definitely give the Triniti another try after some improvements take place. In my opinion it's a great ball for recreational hitting, but not for competition.
From: Ray, 10/5/19