Wear-Your-Bulkiest Trick
To keep your daypack nimble, wear the warmest piece and stash lighter layers. A breathable base, insulating midlayer, and shell adapt better than a single heavy jacket. In summer, the shell blocks surprise squalls; in shoulder seasons, a beanie and neck gaiter add outsized comfort. You stay nimble at trailheads, ready to peel layers rather than shiver or overheat during sudden elevation changes.