Callaway Tour I(Z) & Tour I(S) ball
A review of the Callaway Tour I(Z) & Tour I(S) ball

Callaway have again created the softest feeling ball on offer in the form of the Tour I(S). This could prove particularly useful now that the groove rule is in place. The soft cover on Callaway Tour I(Z) & Tour I(S) does mean they have more of a tendency to cut up.
Why you can trust Golf Monthly
Callaway's HEX Aerodynamics replace standard dimples on the Tour I(Z) and help reduce drag for a stronger flight on long shots. The 4-piece design includes a dual core that helps increase distance for a wide range of swing speeds.
The new grove rule has meant that Callaway have made their Tour I(S) ball even softer to help provide added spin from short-range.
Get the Golf Monthly Newsletter
Subscribe to the Golf Monthly newsletter to stay up to date with all the latest tour news, equipment news, reviews, head-to-heads and buyer’s guides from our team of experienced experts.
-
Angel Yin Hangs On For Second LPGA Tour Title Despite Sponsor Invite's Closing 61
The American narrowly claimed the Honda LPGA Thailand prize ahead of Japan's Akie Iwai - who almost snatched victory away via an outstanding 11-under 61
By Jonny Leighfield Published
-
Who Is Kevin Yu’s Caddie?
Californian Zeke Salas has assisted Kevin Yu during the opening years of a promising PGA Tour career – here’s what we know about him
By Mike Hall Published
-
TGL Week 6 Preview: All The Details You Need For The Three-Game Week
The sixth TGL week sees all six teams appearing at the SoFi Center, with three matches over two evenings
By Mike Hall Published