Men's cap Under Armor Blitzing * material: 100% polyester * breathable material * inner hem for excellent sweat drainage * bent cap * ventilation holes * flexible Flexfit circumference * circumference for size S/M approx. 53-55 cm * circumference for size M/L approx. 56 – 58 cm * circumference for size L/XL approx. 59 – 61 cm * circumference for size XL/XXL approx. 61.5 – 64 cm * low profile * flexfit