Zpacks Women's Arc Haul Ultra 60LZpacks Women's Arc Haul Ultra 60L is designed specifically for women and teenagers with a smaller build. It features shorter, narrower shoulder straps for a better fit on slimmer shoulders. With a shorter frame height and an adjustable torso range, it accommodates torso lengths of approximately 16 19" (40 48 cm). Additionally, the torso height can be adjusted to grow along with a young adult. 60 liters is designed for long journeys between resupplies