Boreal Synergy

The Boreal Synergy climbing shoe is the softest, most responsive model in Boreal’s lineup. Designed for high-level bouldering and competition use, this second-generation version retains its signature flexibility with no midsole at all, allowing maximum foot sensitivity. The updated heel cup offers a lower-volume fit, improving lockdown without altering the original last. Ideal for dynamic, steep terrain and large-volume smearing, the Synergy helps climbers engage their feet more like hands—perfect for modern comp-style problems.

Details:

- Optimal for competition bouldering and steep indoor terrain
- Excels in smearing, friction climbing, and toe/heel hooking
- Not designed for edging or vertical face climbing
- High-performance feel for advanced and comp climbers
- Same rubber compound across toe and heel for consistent contact response

Technical Specifications:

- Outsole Rubber: Zenith Ultra 2.0 (softest Boreal compound)
- Midsole: None – ultra-flexible for full sensitivity
- Upper: Integrated toe rubber in Zenith Ultra 2.0
- Heel: Zenith Ultra 2.0 for consistent grip and feel
- Last: Same as original Synergy
- Fit: Updated low-volume heel cup