Incredibly lightweight and waterproof, the Outdoor Research Helium Radar Rain Cap combines the rain-stopping fabric of OR's bestselling rain jacket with the style and silhouette of their bestselling cap. It's the perfect combination of wet-weather, on-the-trail performance and around-town fashion. The cap is made from 2.5-layer, 100\\% nylon ripstop Pertex Shield+ fabric, which lets skin breathe so you don't get overheated and is fully seam-taped to keep out moisture. Crushable and easy to pack, the Helium Radar Rain Cap features a lightweight brim, external drawcord adjustment, TransAction wicking headband, and a reflective OR logo. Imported.