Featuring Lifa Stay Warm technology Extremely breathable and quick drying time Long sleeves with stylish stripe design Half-zip neckline The Lifa Stripe Half-Zip from Helly Hansen is a superb base-layer top for staying insulated whilst training. The Lifa fibres provide insulation that also manages moisture levels during your activities. Featuring striking contrasting stripes on the sleeves and stitch detailing. Ribbed cuffs and a half-zip neckline provide a firm fit.