Oscar Jacobson Jamie Windstopper Jackets: The Jamie Windstopper from Oscar Jacobson is a subtle rip-stop woven fabric with Primaloft padding. These windproof jackets offer exceptional weather protection and work well alone or as a base layer under a waterproof jacket. The outer fabric offers stretch potential and the sleeve cuffs and hem have been elasticised to improve weather protection and customise the fit. Two lower-front pockets are fully zippered and offer hand warmth or storage for a scorecard and accessories.