Nike College AeroBill (Ole Miss) ON-FIELD STYLE FOR FIRED-UP FANS. The Nike College AeroBill (Ole Miss) Hat looks like the caps teams wear on the field. Cheer your team to victory with embroidered team details that show your pride on a breathable design that`s made to keep you cool and comfortable. This product is made with at least 50% recycled polyester fabric. Nike AeroBill technology combines breathability with sweat-wicking comfort. Perforated back and side panels and embroidered eyelets for ventilation. More Details Fabric: Body: 100% polyester. Back of front panel: 92% polyester/8% cotton. Underbill: 100% cotton. Hand wash