Buy high-quality hats and mittens via TopOfStyle and save up to 50%. Graham Zimmerman, Quinn Mason, Megan Banker, etc., are proud brand ambassadors of the fashion brand Outdoor Research. Outdoor Research is a reputed name in the US for its agglomeration of top-class mountaineering and sporting apparel. Many popular shades of gray are smoke gray, ash gray, charcoal gray, etc. Choose your Outdoor Research Gray Hats & Caps for men made from wide varieties of material such as Nylon, Wool and Synthetic Fabric. Each material provides different look and feel of Outdoor Research Men Hats & Caps.