On a frosty morning dog walk, the MonoQuilt Vest holds core warmth with 60g PrimaLoft Gold insulation, and its quilting pattern leaves fewer cold spots. That same pattern keeps the vest light and packable once the day warms up. The minimal stitching also supports long-term durability and easy washing. What Our Gearhead(R) Experts Are Saying:"I wear it alone on cool fall hikes and under a shell for resort days, because the insulation keeps core heat in without adding bulk at the arms. The shell repels light moisture but does not block wind, so exposed ridgelines call for another layer on top."