Protect what is yours! Our Hermetic dry bags offer the best, quickest and easiest solution to keep your most valuable possessions safe while you enjoy living your life to the extreme. Simply place your phone or wallet in the bag, let go of the opening, and watch as the magnetic seal quickly locks and protects against all the elements: water, dust and even the finest sand. This is our “just-let-go principle” – the bags close immediately and automatically. No manual locking, clicking, pushing, or snapping.