Cavalry Hat CSA or Union This is a great quality Civil War Calvalry Hat, a big step up from the old poor quality sitff felt hat that it is replacing. It features a wire U-Shape-It brim so it can be customized for the appropriate authentic look. The American made 100% wool felt crushable material is soft, sturdy and comfortable. Colors: Union Blue and Confederate Gray. Sizes: Medium, Large, and Extra Large. Union Blue Only Color.