Nothing is amazing about the back ventilation, as this pack doesn’t include a perforated panel like the bigger Rail 2, but it leaves a small footprint. My only minor gripe is that Thule didn’t ...

When you buy through our links, we may earn a commission. Learn more› By Jenni Gritters A hydration pack—that is, a backpack with a built-in water reservoir—makes it easier to stay hydrated ...