Notch Catalyst Tree Saddle

Engineered for Comfort, Built for the Canopy

The Catalyst Climbing Harness is designed for serious arborists who want the ultimate in comfort, adjustability, and performance. Featuring custom EVA-molded back and leg panels with integrated ventilation channels, the Catalyst stays breathable and supportive during long climbs. Field-tested and highly praised for its fit and functionality, this harness helps you move naturally and stay organized in the tree.

With multiple adjustment points at the waist, rise, and leg loops, the Catalyst ensures a dialed-in fit for different body types and climbing styles. Custom flared side D-rings offer quick, intuitive clipping, while the rope bridge includes a patented Wear Safe™ ring for easy integration into your climbing system. Molded gear loops and multiple rated connection points allow for smart, efficient racking and gear management.

• Custom EVA padding: Molded back and leg panels with ventilation channels for breathability
• Flared side D-rings: Intuitive design for quick clipping
• Multiple adjustments: Fine-tune waist, rise, and leg loops for a custom fit
• Rope bridge: Sterling rope with Wear Safe™ ring for secure system connection
• Gear organization: Molded gear loops and multiple rated attachment points
• Scannable ID: Enabled for track-and-trace equipment management
• Certifications: ANSI Z133-12, CE EN358/EN813, ASTM F887-23 (25.4.1 & 25.4.2)
• Weight: approximately 4.7 lbs
• Available sizes:
  • Size 1: Waist 31–43 in (80–110 cm), Leg Loops 23–29 in (60–75 cm)
  • Size 2: Waist 38–52 in (96–132 cm), Leg Loops 26–32 in (66–82 cm)

Next-Level Comfort and Control

From the molded padding to the intuitive gear layout, the Catalyst is built for arborists who demand a harness that performs as hard as they do. If you're spending long days in the canopy, this is the harness you'll want under you—comfortable, breathable, and ready for whatever the job throws at you.