Seirus Innovation Women's Mogwai Quick Clava (White, One Size) by Seirus Innovation. $29.99. Moisture Wicking. Hat: 50% Wool, 50% Acrylic Scarf: 100% Polyester. Comfortable and Stylish. Fleece Lined Band. The Mogwai Quick Clava Hat from Seirus Innovations is a warm, classic beanie style that comes with a built in clava which tucks seamlessly up into the hat when you don't need it, and pulls down for full face and neck coverage when you do.