2022 Adam Hammes Tour Series Zone

Discraft says this about the Zone:

This years Tour Series stamps were designed with a Retro Motif to compliment possibly our best run of ESP Swirl to date! The Zone overstable putt and approach disc is the go-to workhorse putter for dependable overstability in any conditions. Often used for technical approaches or powerful upshots for both forehand and backhand players.