The ATOM Chest Harness is a modular upper-body harness designed to transform the ATOM Sit Harness or Build Your Own (BYO) ATOM Sit Harness into a full-body NFPA Class III Life Safety Harness. Engineered for technical rescue, rope access, and high-angle operations, the ATOM Chest provides the versatility to move seamlessly from edge work to rope-based operations while maintaining exceptional comfort, safety, and mobility.

Built around CMC's modular ATOM Harness platform, the ATOM Chest allows rescuers to benefit from the freedom and mobility of a sit harness until the demands of the operation require the support and security of a full-body system. Multiple steel attachment points, integrated load transfer, and compatibility with the ATOM Chest Ascender Kit make this harness ideal for hanging on rope, managing heavy loads, ascending systems, and performing complex rescue operations.

Features

• Converts the ATOM Sit Harness or BYO ATOM Sit Harness into an NFPA Class III Life Safety Harness
• Modular design allows users to transition from sit harness mobility to full-body support when needed
• Sternal and dorsal steel D-rings provide robust attachment points for rescue and rope access applications
• Integrated load transfer system improves comfort during vertical lifting and suspension
• Compatible with the ATOM Chest Ascender Kit and a variety of chest ascenders
• Quick installation and removal to adapt to changing operational requirements
• Built for extended comfort during technical rescue and rope access operations
• Water-repellent, UV-resistant webbing enhances durability in harsh environments
• Breathable D3 cloth dorsal padding improves comfort during prolonged wear
• Contrasting thread assists with visual wear inspection
• Black Web Keepers™ secure loose webbing ends for a clean profile
• Replaces the ProSeries Chest Harness within the ATOM Harness system

Compatibility

• Compatible with current ATOM Sit and BYO ATOM Sit Harnesses (PN# 202B) featuring a rear oval ring attachment point
• Creates an NFPA Class III Life Safety Harness when paired with the current ATOM Sit Harness
• Compatible with previous ATOM Sit Harnesses (PN# 202A) using a Trapezium Quick-Link (sold separately)
• Supports integration with CMC chest ascender systems for rope ascent applications

Specifications

• Manufacturer: CMC
• Product Type: Modular Chest Harness
• Product Name: ATOM Chest Harness
• Part Number: 202363
• Weight: 0.85 kg (1.87 lb)
• Chest Size: One Size Fits Most
• Color: Black
• Standards: NFPA Class III Life Safety Harness (when used with compatible ATOM Sit Harness)
• Application: Technical Rescue, Rope Access, Work at Height, High-Angle Rescue