YHM's Fat Cat Sound Suppressor Covers with an industry leading suppressor cover retention system. Using our unique locking straps, your cover is secured to your Fat Cat suppressor ensuring it stays in place while shooting. Most other covers will loosen up over time and begin to slide off. When you are on target, the last thing you need is to look up at your cover. These covers are made from only the highest quality materials. The material is rated to 1800AdegF. The outer shell is a durable 1000 Denier Cordura Nylon that is water resistant and stands up against fading, abrasion, rot, and mildew. We even chose a high quality fire resistant thread to ensure every aspect of the cover can stand up to the toughest environments. Outer Shell constructed of 1000 Denier Cordura Nylon 4.5 inches in length Will fit Fat Cat YHM Suppressors If the suppressor is kept at extreme temperatures for an extended time, the heat starts to dissipate through the first layer and will eventually bring the temperature of the Cordura shell above it's rated temperature. The amount of heat generated in the suppressor itself can quickly get the temperatures above the materials' rated levels.