Classic and universal merino t-shirt Icebreaker SPECTOR SS CREWE SUEDE W is suitable for work outs all year round. You can layer it and it will still provide maximum comfort. It is made from airy, ultra lightweight material that is a blend of breathable merino wool and nylon which gives it odour resistant properties. All of this makes it an ideal companion for the days spent on the road, spontaneous hikes, and other adventures. Flat shoulder seams prevent chafing when you are spending a considerable amount of time with a backpack on your back.