The Trigger Hoodie is a mid-weight base layer designed with two layers for warmth and dryness without bulk. It’s made from 100 percent double-knit polyester, a fabric you’ll be happy to have next to your skin. It also features an antibacterial fabric treatment called the AEGIS Microbe Shield® that keeps the rancid armpit smells that you work up on the mountain out. For extra blustery days, the Trigger has a fitted hood and thumb-holes at the cuffs, so you don’t lose heat from your head and extremities. This base layer is right for you if you want something that will keep you warm (but not too warm), dry and odorless.