The company said the model targets golfers who feel uncomfortable with center-shaft, zero-torque putters. By using a familiar heel-shaft setup, it aims to keep a comfortable look at address while delivering the stability and consistency associated with zero-torque designs.
The putter pairs a single-bend shaft with Odyssey’s Tri Hot multi-material construction. The shaft is positioned toward the heel to support intuitive alignment. The head uses aluminum and steel, along with more than 140 grams of tungsten placed strategically. Callaway said more than 80% of the overall weight is concentrated below the topline to create an ideal center of gravity and reduce unwanted head movement during the stroke.
The face features an AI-designed “Ai-DUAL insert,” with a firm inner core and a softer outer layer intended to produce consistent ball speed and a softer feel. It also uses new “FRD (Forward Roll Design)” grooves tilted at 19 degrees to improve straight-line roll immediately after impact.
Callaway said it incorporated feedback from tour players, fitting a black PVD-finished SL120 shaft to add weight compared with previous versions and applying a newly designed Pistol Plus grip for a more natural fit in the hands.
The lineup includes four mallet models: Rossie, #7, Jailbird and #7 Cruiser. Standard lengths run from 33 to 35 inches, with a 38-inch Cruiser option. The Cruiser model comes with an SL140 shaft and an oversized grip, aimed at golfers who prefer a heavier, more stable putting feel.
A Callaway Golf Korea official said the S2S Tri Hot SB “delivers both the comfort of a heel-shaft putter and the stability of a zero-torque putter,” adding that it offers an alternative for golfers uneasy with center-shaft models and is designed to provide more consistent putting performance.
* This article has been translated by AI.
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