When the seasons change, so should your running clothes. The icebreaker Quantum III Long Sleeve Zip is the perfect layering piece for your cold-weather runs and winter adventures. This slim-fit midlayer is cut from 100% merino wool that regulates body temperature and dries fast—ideal for working up a sweat in the mountains. It has a fitted hood when you want to bundle up and thumb loops on the sleeves make it easy to add layers and keep your hands warm. Details: 100% Merino - Soft merino fibers that regulate body temperature in all weather conditions and resist odors Fitted hood Thumb loops to keep your sleeves in place and hands warm Offset shoulder seams to prevent friction 2-way zip Zipper chin guard to prevent friction Zippered hand and chest pockets Internal dump pockets Drop tail hem for added coverage