Now upgraded with a removable, replaceable liner. The OffGrid Faraday Duffel Bag delivers serious Faraday protection with a smarter build designed to last. TAA compliant and made for real travel, real gear, and real use. Why? Because liners don’t last forever. Abrasion happens. Zippers scrape. Gear rubs. Instead of making you replace the entire bag down the line, we designed a smarter solution: swap the liner, keep the duffel .