It's often windy in the mountains. So having a lightweight jacket like the Marina Ultra Light Wind Jacket can make a real difference to how long you can stay out. We focused on fit and comfort here, with a gathered waist section at the back for a streamlined fit and two ventilation slits on the back panel to keep pace with your performance. Elasticated binding at the hem, cuffs and hood helps block out the wind. The Marina’s recycled fabric is treated with a PFAS-free DWR (Durable Water Repellent) finish so that it also shrugs off light showers. And when you no longer need it, this wind jacket packs down small inside its own inside pocket. With two side pockets with concealed zips.