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Arbsession

    Notch Catalyst Harness

    As low as$524.99

    The Notch Catalyst is the most comfortable arborist harness on the market. The custom EVA molded back and leg panels feature integrated ventilation channels for comfort and breathability. Multiple adjustment points in the waist, rise and leg loops and allow you to get the perfect fit. The custom flared side D’s are easy and intuitive to clip into while the rope bridge has a patented Wear Safe ring for clipping into your climbing system.

    There are numerous rated connection points as well as molded gear loops for racking everything you need in the canopy. Our field testers rave about how comfortable, and intuitive the Notch Catalyst is to use in the tree.

     

    • Size 1 fits waists 31 to 43 inches
    • Size 2 fits waists 38 to 52 inches
    Select Size:
    Size 1
    Size 2
    Brand:Notch

    Details

     
     
    • Custom EVA Molded back and leg panels with integrated ventilation channels
    • Custom flared side D rings
    • Multiple rise adjustment points
    • Wear Safe™ ring on Sterling rope bridge
    • Multiple connection points for accessories
    • Scannable enabled for track and traceability
    • Molded gear loops for easy racking
    • Rated connection points
    • Complies with requirements of ANSI Z133-12, CE EN358/813 and meets qualification testing requirements 25.4.1 and 25.4.2 of ASTM F887-23
    • 4.7 lbs weight

    Size 1

    • Waist Belt: 80 to 110 cm (31 to 43 inches)
    • Leg Loops: 60 to 75 cm (23 to 29 inches)

    Size 2

    • Waist Belt: 96 to 132 cm (38 to 52 inches)
    • Leg Loops: 66 to 82 cm (26 to 32 inches)

    More Information

    Manufacturer:Notch

    Files

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    Customer Reviews
    5.0 out of 5 (4 reviews)

    Toby • June 17, 2026

    Good saddle

    One feature I like about this saddle is the bulky bridge and ring. Seems really durable. Also, the saddle is comfortable. Overall it’s a good saddle.

    Dd • June 4, 2026

    Comfortable

    Had it for a couple of months now and by far the most comfortable saddle i've been in. My favorite feature is the gear loops that stick out super easy to access my equipment.

    Evan • December 30, 2025

    Happy Thighs

    This is the fourth harness I’ve spent time in, and my favorite.. I’ve spent years production climbing in a Sequoia, bought a Koala, then sat in a Catalyst at a climbing competition, and had to have one. I found some instructions for rigging up a second bridge in an adjustable hitch configuration (I’m a weirdo SRT foot locker), and it’s the first harness which does not dig into my inner thighs when thigh pads rotate outward. The bulk and weight are more than I’m used to, but it’s a small cost for the comfort the Catalyst provides. Sizing: I’m 5’11”, 170lb, wear 34 x 34 pants, and the size 1 works great for me.

    Drew • March 20, 2025

    Most Comfortable Saddle Out!

    This harness is extremely comfortable especially while moving around in the canopy for long periods. The layout and features just make sense. Big front bridge D rings are EASY to clip into. Back support is good especially for such a lightweight harness. Lot's of mobility as well.

    About Arbsession

    We specialize in professional arborist supplies and tree climbing gear. Our mission is to provide the highest quality equipment for tree care professionals.

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