The Icebreaker Men’s Helix Vest is an insulated vest for fall time hikes. Zip up and protect your core from the crisp, cool temps with MerinoLOFT insulation. Quilted for thermal regulation, the zones provide heat where you need it most (at the front chest, while MerinoLOFT side panels offer breathability in your hot spots. Lined with Merino for softness, you can throw this on over a base layer or your flannel button up. As fall fades, utilize it as a midlayer and throw a shell or other insulated jacket over top.