Craft Active Crewneck Short Sleeve Base Layer: A soft & breathable crew neck base layer for extended exercise in cold & fair conditions. The Craft Zero range combines air channelled polyester & filament yarns to create the ideal micro-climate for cool weather endurance work-outs. Craft Zero: Craft Zero has established itself as a legend in functional underwear & has become the most trusted base layer system for work-outs in fair & cold climates. Air-channelled polyester expels excess heat away from the body while filament yarns transport moisture to the next layer or the surrounding air. This creates the ideal balance of insulation & ventilation for endurance racing & training scenarios. Close Ergonomic fit Flat lock stitching Excellent moisture transportation Crewneck cut protects the base of the neck