Lightweight merino rib-knit baselayer top. We've all got the goal of efficiency, and the Woolies 1 Zip T-Neck takes the guesswork out of dressing. Start with this next to your skin and you're guaranteed to stay warm and dry all the way up and down the mountain. 8'' zip neck with locking zipper pul. Flatlock seams. Set in sleeves. Wide sleeve cuff detail. Tag-free label. Back length from top of shoulder=25 1/2'' (size M). Material: Wool.