"Having this harness set gives me total confidence when our kids are on the zip line. The auto-lock carabiner and lanyard lock in securely, and adjusting between our 8-year-old and adults takes under 30 seconds." — Verified Buyer (★★★★★ 4.9/5 from 42 reviews)

🎁 Bundle & Save: Buy any 2 accessories and automatically get 10% off at checkout! Plus, use code HALLOWEEN10 for additional seasonal savings and free US shipping on orders over $99.

Ride with total confidence and safety. The CTSC Adjustable Zipline Harness Set provides complete fall-prevention and ergonomic body support for backyard, aerial adventure, and commercial zip lines. Engineered from high-tensile structural polyester webbing rated over 5,000 lbs, this complete 3-in-1 system includes an adjustable half-body harness, a heavy-duty 25 kN auto-locking alloy steel carabiner, and an adjustable 3.9ft positioning lanyard. Whether replacing an old seat or adding redundant harness security, this set ensures riders remain centered, upright, and locked in safely on every ride.

🛡️ Climbing-Grade Safety & Ergonomic Features

• Universal Multi-Age Fit: Smooth slide-adjust alloy friction buckles accommodate waists from 19.5" to 45" (50–115 cm) and thighs from 15" to 30" (38–76 cm), fitting kids ages 5+, teens, and adults seamlessly.
• 5,000+ lbs High-Tensile Polyester Webbing: Heavy-gauge reinforced webbing with high-density precision bar-tack stitching delivers 23 kN tensile breaking strength.
• Fail-Safe 25 kN Auto-Locking Carabiner: Heavy-duty twist-lock alloy steel carabiner prevents accidental gate openings caused by cable vibrations, keeping the lanyard tethered securely to your trolley.
• Adjustable 3.94ft Positioning Lanyard: Bright yellow high-visibility lanyard with reinforced eye loops centers the rider's gravity directly below the trolley, preventing swinging or tipping.
• Optimal Weight Distribution: Widened structural webbing cradles hips and upper thighs, eliminating pressure points and arm fatigue during long gliding runs.
• Meets Strict CE & ASTM Standards: Fully certified to CE EN 12277 (Harness) and CE EN 362 (Connector) standards for recreational adventure equipment.

📏 Technical Specifications

📦 What's Included in the Box

• 1 × CTSC Adjustable Half-Body Zipline Harness (Black)
• 1 × CTSC 3.9ft High-Tenacity Adjustable Lanyard with Sewn Eye Loop (Yellow)
• 1 × Heavy-Duty 25 kN Auto-Locking Alloy Steel Carabiner

🤝 CTSC Quality & Guarantees

• 1-Year Manufacturer Warranty covering all webbing stitching, adjustment buckles, and carabiner hardware
• 30-Day Money-Back Guarantee
• Free Express US Shipping on orders over $99 (delivered in 3–4 business days)

❓ Frequently Asked Questions

Q: How do I adjust the harness for a proper fit?
A: Step into the leg loops and pull the waist belt above your hip bones. Pull the waist strap until snug, then adjust both leg straps. Ensure there is no more than two fingers of slack between the straps and your body.

Q: How does the lanyard connect to my trolley?
A: Girth-hitch the yellow lanyard's sewn eye loop through the front reinforced tie-in loop of the harness. Clip the auto-locking carabiner to the trolley's bottom eyelet and twist the gate until it locks securely.

Q: Can I use this together with a swing seat?
A: Yes! You can sit on a disc swing seat while wearing this harness tethered to the trolley. This provides maximum comfort plus fail-safe backup protection in case a rider lets go of the handles.