The TERG Daypack V2 Backpack is built to adapt. Waterproof YKK zippers keep your gear protected, while highly durable fabrics—originally developed for World War II airborne troop bulletproof jackets—offer abrasion resistance and stand up to anything. TERG is Helinox’s independent brand for bag design, born from a simple principle: create what satisfies us first. The name comes from the initials of Trial and Error Research Group, where every feature, shape, and hidden function is continuously refined, resulting in bags with thoughtful details and unique sensibilities.