The Kosto X-PRO CHK211 and CHK215 Class A safety harnesses are designed for high-performance fall arrest applications, combining advanced comfort with reliable protection. Both models feature 5 adjustment points, an aluminum dorsal D-ring for fall arrest anchorage, and integrated trauma suspension straps for post-fall safety. Made from 100% polyester webbing with zinc-coated steel hardware, they resist wear, chemicals, and daily use in tough industrial environments. Breathable honeycomb padding at the shoulders and thighs enhances airflow, reducing heat buildup during long work shifts. A seat strap and PVC X-back design improve ergonomics and reduce slippage, ensuring safe and comfortable use at height.

Key Features

5 adjustment points: Secure fit at legs, chest, and torso.
Quick and safe donning: Chest quick-connect buckle for easy use.
Comfort padding: Breathable honeycomb padding at shoulders and thighs.
Durable build: 100% polyester webbing with zinc-coated steel hardware.
Integrated trauma straps: Resettable suspension straps for post-fall safety.
Strong anchorage: Aluminum dorsal D-ring for fall arrest connection.
Enhanced ergonomics: PVC X-back prevents tangling; seat strap improves comfort.
Inspection-ready: Impact indicator and label protector with QR code.

Intended Use

The X-PRO Class A harness family is intended for workers who require a comfortable, high-performance fall arrest solution in demanding industries.

Construction and general contracting
Structural steel assembly and welding
Oil & gas and petrochemical facilities
Mining and heavy industry
Energy and utilities maintenance
Transportation, warehousing, and shipping
Manufacturing and fabrication plants
Bridge and infrastructure projects
Confined space entry with vertical anchorage requirements
Scaffolding and elevated platform tasks

Variant Differentiation

CHK211: Class A harness with quick-connect leg buckles for fast donning and removal.
CHK215: Class A harness with tongue buckle leg adjustments for secure fit and added lumbar padding for positioning comfort.

Product Specifications

Product Type: Class A safety harness
Material: 100% polyester webbing
Dorsal D-Ring: Aluminum
Buckles: Zinc-coated steel (quick-connect or tongue depending on model)
Adjusters: Zinc-coated steel
Trauma Straps: Integrated, resettable
Padding: Breathable honeycomb structure at shoulders and thighs
Seat Strap: Included
PVC X-back: Prevents slippage and tangling
Lanyard Keeper: Included
SRL Slots: Dual
Maximum Arresting Force: 8 kN (1800 lbs)
Harness Stretch: 0.6 m (2 ft)
Tensile Strength: 22 kN (5000 lbs)
Capacity: 59–141 kg (130–310 lbs)

Certifications and Standards

CSA Z259.10-18, Class A: Canadian standard for full-body harnesses for fall arrest.
ANSI Z359.11-2021: U.S. standard for full-body harness design and performance.
ANSI A10.32-2023: Safety requirements for fall protection in construction and demolition.
OSHA 1910 / 1926 Subpart M: U.S. regulations for fall protection in industry and construction.