Tri-Hot, Square 2 Square, and Ai-One are key technologies Odyssey has used in recent putter lines. Now, Tri-Hot was introduced back in the early 2000s, Ai-One is quite a bit newer, and Square 2 Square was released just in 2025, but all have been validated on tour and in the marketplace. So, what did Odyssey do? Took all three and combined them into one high-performance putter line.

Let’s start with the tried-and-loved Tri-Hot construction on these putters. Odyssey engineers originally created Tri-Hot as a way to make some of its iconic putter shapes more stable and forgiving by using three different materials.

The engineers today took that same philosophy and turned it up to 11 in the S2S Tri-Hot line by combining lightweight aluminum, steel, and very dense tungsten to create a more stable Square 2 Square design. More than 80 percent of the putter’s mass is in the front of the putter to create that zero-torque balance and a shaft that sits closer to the face.

Moving the shaft forward on the putter was to create a look that was a bit traditional and that more golfers would appreciate. Without over 140 grams of tungsten (that is a whole lot), they would have had to keep that shaft further back on the head. The more forward position also allowed Odyssey to remove the shaft lean that most zero-torque putters have, giving the putter a better look and allowing any grip to be used.

This launch is also the debut for Odyssey’s latest insert, Ai-Dual with FRD Grooves. As Odyssey did with the original Ai-One insert, engineers created Ai-Dual using a whole lot of AI and machine learning. Taking what they learned from Ai-One, the team set out to create a softer insert that also created a more consistent roll. Ai-Dual is built from two layers of urethane with a complex thickness profile, which are then combined.

While the difference in layers looks cool on the sole, it is there to create consistent ball speed on off-center impacts. Removing the aluminum layer from the back of the Ai-One construction insert gives this Ai-Dual insert a very soft feel and a muted sound at impact.

New Forward Roll Design Grooves are engineered into the insert at 19 degrees and work with the Ai-Dual technology to improve forward roll on any putt coming off the face. Better, more instant, forward roll helps keep putts online and improve distance control so golfers have the best chance at making putts. Odyssey found these FRD Grooves really shine on slippery breaking putts, where the extra skidding and hopping of the ball can affect how it rolls through the break.

Finally, Odyssey took a blank sheet of paper and created a new Pistol Plus grip. Researching the grips used on professional tours led to the development of a new grip that is more mid-sized and features sharper corners that fit the hand more easily and comfortably. The design should give golfers better awareness of the putter face as well.

Square 2 Square Tri-Hot putters are finished with a new SL120 putter shaft in black PVD, which is heavier and stiffer to match the feel and performance of the new putter heads.

Additional specs below.

Pre-sale: 10/30

At retail: 11/14

Pricing: $549.99 (Jailbird, #7, Rossie), $599.99 (Jailbird Cruiser)