The Patagonia Isthmus Lined Vest wears as comfortably on a morning commute as it does layered under a shell on a trail approach. The hip length and regular fit keep it from reading as either too casual or too technical, so it moves between those moments without a second thought. What Our Gearhead(R) Experts Are Saying:"This vest solves the between-layers problem. It's warm enough to wear solo on a cool morning errand run and trim enough to disappear under a shell when the weather turns."