The 3M™ DBI-SALA® ExoFit™ X300 is designed for those who refuse to compromise. The X300 harnesses are outfitted with high-quality components that have been developed to enhance the safety, convenience and performance for working at height on your job site. The X300 comfort harness is built with 6,000lb polyester webbing, robust nylon/polyester hybrid comfort padding with reflective 3M Scotchlite™ panels, and lightweight aluminum hardware. New technology in the Dorsal D-ring area helps workers make efficient connections and maintain a safe harness fit. Locking torso adjustment and quick-connect buckle options are available to optimize fit and worker experience. Select configurations are also available with exclusive weight distribution system to help reduce shoulder strain and fatigue. ExoFit NEX™ harnesses are the most advanced harnesses in the industry. They’re the culmination of our experience with ExoFit™ and ExoFit™ XP, ongoing research and the incorporation of new materials and innovative features. True to our NEX mission, we manufacture these harnesses using materials that won’t add unnecessary weight for ultimate comfort. When speed and efficiency are project requirements, ExoFit NEX™ will provide the freedom and confidence to function at your maximum potential. Finally, ExoFit NEX™ harnesses are designed using materials that last.Get into the best, the ultimate comfort, funiction and durability harness, ExoFit NEX™.
- AUTOMATIC STAND-UP BACK D-RING WITH ANTI-SLIDE DORSAL D-RING PAD: Conveniently connect faster and easier with lightweight aluminum D-rings
- AUTO-LOCKING QUICK-CONNECT CHEST AND LEG BUCKLES: Secure contact with webbing, reducing the need to adjust and greatly reducing buckle slide
- REVOLVING TORSO ADAPTERS: Adjust harness fit with ease and speed, locking webbing into place to maintain a comfortable and safe harness fit
- MULTIPLE D-RINGS FOR CLIMBING: Located on the back and front
| Guides & Documents | Spec Sheet |
| Brand | 3M |
| Product Type | Comfort Vest Climbing Safety Harness |
| Collection | DBI-SALA® |
| Color | Gray |
| Width (in) | 21.5 |
| Length (in) | 17 |
| Height (in) | 4.7 |
| Weight (lb) | 4.37 |


