When core warmth is what you're after and softness is the way you want to get there, the Patagonia Retro Pile Vest is the only way to go. This retro-styled vest is made with a soft and fuzzy high-pile shearling fleece that not only provides lightweight warmth and a cozy feel, but is also now made using entirely recycled materials for a construction that's easier on the planet. Offset shoulder seams make this vest comfortable to wear beneath a backpack on chilly fall day hikes, while zippered hand and chest pockets provide secures storage for snacks, trail maps, and gear. Plus, its full-zip design makes for easy layering, so it'll be easy to play around with your midlayers when the weather changes on windy summits.