The men’s THERMOBALL Vest is a durable, packable layer that has an excellent warmth-to-weight ratio. Thermoball synthetic insulation clusters in balls like real down, as opposed to scattered fibres, and stays warm even when wet. Every style of shell has a Durable Water Repellent finish. The exposed front zipper is Vislon. An internal chest pocket zips to keep things secure. Two covered hand pockets are secure-zippered. There are stows in the hand pockets. A hem cinch cord allows you to keep the wind out on blustery days. The lightweight vest is immensly packable.