Arc'teryx Covert Case C/O Nylon Imported 6" high 15" wide COVERT CASE C/O - Covert Cases use resilient materials that provide durable structural protection with the least weight possible. All cases convert to a shoulder bag or backpack. LIFESTYLE - Technical outdoor functionality, comfort and durability brought to everyday designs. TRAVEL PACKS - Lightweight and durable travel systems that are easy to use, secure and ergonomic.