Notch Catalyst Harness Size 1 | EVA Molded Back/Leg Panels, Ventilation, Adjustable Fit, 330 lb Limit

The Notch Catalyst Harness Size 1 is engineered for comfort, support, and practical simplicity high in the canopy. It uses custom EVA molded back and leg panels with integrated ventilation channels to promote airflow and minimize pressure buildup where you notice it most during long climbs.

Designed with the climber in mind, this harness offers multiple adjustment points across the waist, rise, and leg loops to help you dial in a precise, personalized fit. The result is a secure feel that moves with you rather than fighting against your body, making transitions between positions smoother and more natural.

Effortless clipping and gear management

• Custom flared side D rings simplify clipping and organization, while the Sterling rope bridge includes a Wear Safe ring for clean setup.
• Molded gear loops and rated connection points give you flexible options to rack the gear you rely on in the canopy.

The Catalyst also features practical touches like scannable-enabled track and trace for inventory control and safety-conscious operations. It complies with major safety standards and meets specific ASTM qualification testing requirements, ensuring you have a robust, field-ready tool.

Performance at a glance

• 330 lb total weight limit with gear, with sizes available to fit a range of climbers (Size 1 waist 31–43 in, leg 23–29 in; Size 2 waist 38–52 in, leg 26–32 in).
• Custom EVA molded panels and ventilation channels promote breathability during extended use.
• Intuitive adjustments and field-tested comfort that reviewers note as a standout feature.

In real-world use, arborists describe the Catalyst as comfortable and intuitive to handle in treetop environments. While results can vary by climber and situation, the combination of fit, ventilation, and clip-in ergonomics may contribute to a smoother, more controlled climb. This makes the Catalyst a compelling option for professionals who value comfort alongside performance, without promising guaranteed outcomes.