Jeep Unisex Side Star Adjustable Military Hat Cap One size fits most. **Adjustable back strap for custom fit. Material: Cotton+Synthetic Vintage washed design. Officially liscensed by Jeep. Curved peak with stitching detail Lightweight stretch soft shell with a striped fleece backer. Universal wind permeability rated at 5-10 CFM (0 CFM is 100% windproof) with high loft striped fleece backer