Warm up your winter runs with the Women\'s Active Originals Warm Half-Zip. All the insulating power and antimicrobial properties of their crew baselayers, with the added ventilation option of a half-zip neck.The super-soft, lightweight technical fabric functions well against the skin and can be paired with another layer to keep you outside even on bitterly cold mornings.Active Warm insulation - ideal for all winter activitiesHalf-zip front - offers immediate ventilation when neededEffective moisture-wickingBrushed inner liningFlat-stitched seams - eliminate abrasion for comfortOdlo Effect antibacterial treatment - combats odour-promoting microbesExtended rear hemline