5 CNC milled Stack weights combine with a custom engineered shaft & hardware to create 30 unique combinations for unlocking dynamic variable inertia speed training.
Training made easy with our award winning App. Guided programs, timers, effortless data-entry, and track key metrics on your speed journey.
Programs designed in the lab – and proven on Tour – that respond dynamically as you level up your speed.
TheStack App Training
- 2-year License included, accessible on iOS only.
- Dynamic speed training formulated by Dr. Sasho MacKenzie
- Guided workout timer for reps, sets, and rest intervals
- Custom speed metrics to track your gains
- Hands-free data entry using voice entry technology
- Includes bundled access to Stack Putting ($59 value) – Learn more
- Includes Single User License – Enables training and tracking for up to five local (i.e. family) users under one login.
- Multi-user Coaches License license sold separately.