Keep the temp up on the coldest days with the Fahrenheit Hat from Manzella. Waterproof nylon trapper hat. Primaloft insulation is lightweight, breathable and repels water for all around warmth. Interior lined with high loft fleece. Ear flaps for added warmth. Manzella logo at brim. 100% nylon. Imported. Measurements: Circumference: 21 in Brim: 1 1 2 in Product measurements were taken using size MD/LG. Please note that measurements may vary by size.