The Journey PerfectFit Signature matches the Elite's 26-litre capacity but keeps the carrier weight down to 2990 g, the same weight as the smaller base PerfectFit. That combination — bigger volume without the Elite's added weight — fits its stated use of both park walks and day hikes, a middle ground between the entry-level and the trek-focused Elite.
For parents who want more room than the base 17 L model without carrying the extra weight of the Elite's backcountry features, the Signature is the practical pick for day-length outings; for multi-day treks, the Elite's additional features are still the better match.