The NOMATIC Travel Pack was designed for everyday use and for those shorter 1-3 day trips. It's made with durable, water-resistant materials and YKK zippers. Starting at 20L and expanding to 30L, this bag is slim but expands when you need to pack more. The patent pending strap system allows you to go from backpack to briefcase carry those times when you need to look more professional. The full perimeter zipper, RFID safe storage, and hidden Pockets are just a few of the 20+ noteworthy features that make the Travel Pack the most functional travel pack ever! On top of being packed with incredible functionality, the NOMATIC Travel Pack has a sleek minimalist design and gives you confidence for your life on the move.