The Aktiv Stretch Half Zip is a high performing and responsibly made versatile mid-layer. Designed for life on land or sea, this high performing half zip can be worn under a shell to provide warmth and comfort in colder conditions or as an outer layer in warmer conditions. The quick-drying fabric and thermal regulation, ensures you will stay comfortable at all times and the high wicking properties make this a great product to be used in any activity.